Skip to main content

Solutions, Suspensions, and Colloids Solved MCQs in Chemistry

 Solutions, Suspensions, & Colloids

Solutions, Suspensions and Colloids

1. Which of the following is a heterogeneous mixture?

   a) Saltwater

   b) Air

   c) Sand in water

   d) Sugar in water  


2. What does the term "solute" refer to in a solution?

   a) The substance that is dissolved

   b) The substance that does the dissolving

   c) The resulting mixture

   d) The solvent  


3. Which factor does NOT affect the solubility of a solid solute in a solvent?

   a) Temperature

   b) Pressure

   c) Surface area

   d) Nature of solute and solvent  

  

4. What happens to the boiling point of a solution compared to the pure solvent?

   a) It decreases

   b) It increases

   c) It remains the same

   d) It varies depending on the solute  


5. Which term is used to describe a solution that has reached its maximum amount of solute at a given temperature?

   a) Dilute solution

   b) Concentrated solution

   c) Saturated solution

   d) Supersaturated solution  


6. What is the solvent in an aqueous solution?

   a. Water  

   b. Salt  

   c. Sugar  

   d. Alcohol  


7. Which of the following is a solute in a solution of saltwater?

   a. Water  

   b. Sodium chloride  

   c. Oxygen  

   d. Hydrogen  


8. A solution with a large amount of solute compared to the solvent is called:

   a. Dilute solution  

   b. Concentrated solution  

   c. Saturated solution  

   d. Unsaturated solution  


9. What does the term "aqueous" in an aqueous solution indicate?

   a. It contains air  

   b. It is acidic  

   c. It is a solid  

   d. It contains water  


10. In a solution, the substance present in the smallest amount is called the:

   a. Solvent  

   b. Solute  

   c. Mixture  

   d. Compound  


11. What is the maximum amount of solute that can dissolve in a solvent at a given temperature, forming a saturated solution?

   a. Solubility  

   b. Concentration  

   c. Saturation point  

   d. Density  


 12. Which of the following is an example of a non-aqueous solution?

   a. Saltwater  

   b. Sugar dissolved in water  

   c. Alcohol in water  

   d. Oil in water  


13. What happens to the solubility of most solid solutes as the temperature of the solvent increases?

   a. It increases  

   b. It decreases  

   c. It remains constant  

   d. It depends on the specific solute  


14. A solution that has more solute dissolved than it would normally hold at a specific temperature is termed:

   a. Dilute solution  

   b. Concentrated solution  

   c. Supersaturated solution  

   d. Unsaturated solution  


15. Which term refers to a mixture that has uniform composition and properties throughout?

    a. Compound  

    b. Element  

    c. Solution  

    d. Suspension  


16. What term describes a solution that contains the maximum amount of solute that can dissolve at a given temperature?

   a. Unsaturated solution  

   b. Saturated solution  

   c. Supersaturated solution  

   d. Diluted solution  


17. Which of the following statements is true about an unsaturated solution?

a. It contains more solute than can dissolve.  

b. It contains less solute than can dissolve.  

c. It is in equilibrium with undissolved solute.  

   d. It is always a clear solution.


18. What type of solution can dissolve additional solute at a given temperature?

   a. Saturated solution  

   b. Unsaturated solution  

   c. Supersaturated solution  

   d. Diluted solution  


19. In a supersaturated solution, what is the typical result if a small crystal of solute is added?

   a. No change occurs.  

 b. Precipitation of excess solute occurs.  

  c. The solution becomes more unsaturated.  

   d. The solution becomes cloudy.


20. What process involves adding more solvent to a solution, resulting in a decrease in the concentration of the solute?

   a. Saturation  

   b. Dilution  

   c. Supersaturation  

   d. Precipitation  


21. What type of solution is formed when a gas dissolves in a liquid?

   a) Solid solution

   b) Liquid solution

   c) Gaseous solution

   d) Aqueous solution


22. Which of the following is an example of a solid-liquid solution?

    a) Saltwater

    b) Air

    c) Brass (copper-zinc alloy)

    d) Carbonated water


23. What is the solvent in a solution of sugar dissolved in water?

    a) Sugar

    b) Water

    c) Mixture

   d) None of the above


24. A solution with a high concentration of solute is termed as:

   a) Dilute

   b) Concentrated

   c) Saturated

   d) Unsaturated


25. What type of solution is formed when no more solute can dissolve in a solvent at a given temperature?

    a) Unsaturated solution

    b) Saturated solution

    c) Dilute solution

   d) Concentrated solution


6. When sugar is dissolved in water, the resulting solution is classified as:

    a) Homogeneous

   b) Heterogeneous

   c) Colloidal

   d) Suspension


 27. Which of the following is an example of a gas-gas solution?

   a) Air

   b) Vinegar

   c) Soda water

   d) Brass


28. What is the process by which a solute comes out of solution and forms crystals?

   a) Dissolution

   b) Precipitation

   c) Evaporation

   d) Filtration


29. A solution with equal amounts of solute and solvent is called:

    a) Saturated

    b) Dilute

    c) Unsaturated

    d) Concentrated


30. Which of the following does NOT affect the rate of solubility of a solute in a solvent?

    a) Temperature

    b) Pressure

    c) Particle size of solute

    d) Color of solute


31. What is the definition of an aqueous solution in chemistry?

a. A solution that contains water as the solvent

b. A solution that contains a gas as the solute

 c. A solution that is highly acidic

 d. A solution that only contains solid solutes


32. Which of the following is an example of a solute in a solution?

   a. Water

   b. Salt

   c. Sugar

   d. Both a and b


33. In the solution, HCl(aq), what does "(aq)" represent?

   a. Aqueous

   b. Acid

   c. Acquired

   d. Alcohol


34. What is the solvent in a solution where ethanol is dissolved in water?

   a. Ethanol

   b. Water

   c. Both equally

   d. Neither


35. Which concentration unit is defined as moles of solute per liter of solution?

   a. Molarity (M)

   b. Molality (m)

   c. Mass percent (% mass)

   d. Volume percent (% volume)


36. What is the formula for calculating mass percent (% mass) of a solute in a solution?

a. (Mass of solute / Mass of solution) x 100

b. (Volume of solute / Volume of solution) x 100

c. (Moles of solute / Moles of solution) x 100

d. (Density of solute / Density of solution) x 100


37. Which concentration unit is temperature-dependent and is often used when dealing with colligative properties?

   a. Molarity (M)

   b. Molality (m)

   c. Mass percent (% mass)

   d. Volume percent (% volume)


 38. What does ppm stand for in the context of concentration units?

   a. Parts per million

   b. Percentage per molecule

   c. Purity per mass

   d. Particle per mixture


39. Which concentration unit is calculated as the ratio of the volume of solute to the total volume of the solution multiplied by 100?

   a. Molarity (M)

   b. Molality (m)

   c. Mass percent (% mass)

   d. Volume percent (% volume)


40. If you dissolve 10 grams of salt in 100 grams of water, what is the mass percent of salt in the solution?

   a. 10%

   b. 20%

   c. 30%

   d. 40%


41. What is the definition of solubility in chemistry?

a. The ability of a substance to dissolve in a solvent  

b. The measure of a substance's weight  

c. The temperature at which a substance changes state  

d. The ability of a solvent to evaporate


42. Which of the following is known as the universal  solvent?

a. Sodium Chloride 

b. Sulphuric Acid  

c. Hydrochloric Acid 

d. Water 


43. Which of the following statements is true regarding the solubility of gases in liquids?

a. Solubility of gases decreases with increasing temperature  

b. Solubility of gases is unaffected by pressure  

c. Solubility of gases generally increases with increasing pressure

d. Solubility of gases is independent of the nature of the gas


44. What is the term for a solution that contains the maximum amount of solute that can dissolve at a given temperature?

a. Unsaturated solution  

b. Saturated solution 

c. Dilute solution  

d. Supersaturated solution  


45. The solubility of most solid solutes in water tends to increase with:

a. Decreasing temperature  

b. Constant pressure  

c. Increasing temperature  

d. Unchanged particle size


46. In a solution, the component present in lesser quantity is called:

a. Solvent  

b. Solute  

c. Solution  

d. Trace element


47. Henry's law is related to the solubility of:

a. Liquids in liquids  

b. Gases in liquids  

c. Solids in liquids  

d. Gases in solids


48. The solubility of most gases in water follows which pattern as temperature increases?

a. Decreases  

b. Increases  

c. Remains constant  

d. Depends on the nature of the gas


49. Which of the following is a qualitative measure of the concentration of a solution?

a. Molality  

b. Molarity  

c. Dilution  

d. Saturation


50. What happens to the solubility of most solid solutes as pressure increases?

a. Increases  

b. Decreases  

c. Remains constant  

d. Depends on the nature of the solute


51. What is the term used to describe a homogeneous mixture of two or more substances, typically with water as the solvent?

   a) Compound  

   b) Element  

   c) Solution  

   d) Suspension  


52. Which of the following is an example of a non-polar solvent?

   a) Water  

   b) Ethanol  

   c) Hexane  

   d) Acetone  


53. The process by which a solute dissolves in a solvent to form a solution is called:

   a) Precipitation  

   b) Sublimation  

   c) Dissociation  

   d) Dissolution  


54. What factors affect the solubility of a solute in a solvent?

   a) Temperature and pressure  

   b) Density and viscosity  

   c) Color and odor  

   d) pH and conductivity 


55. Which statement is true about the solubility of most solid solutes in water?

a) Solubility decreases with increasing temperature  

b) Solubility increases with increasing temperature  

 c) Temperature has no effect on solubility  

 d) Solubility is only affected by pressure  


56. The interaction between solute and solvent molecules that involves the formation of hydrogen bonds is most likely to occur when the solute is:

   a) Ionic  

   b) Non-polar  

   c) Covalent  

   d) Metallic  


57. Which of the following is an example of a saturated solution?

a) A solution with undissolved solute at the bottom  

b) A solution with dissolved solute at the bottom  

c) A solution with the maximum amount of solute dissolved  

d) A solution with equal amounts of solute and solvent  


58. What is the term for the maximum amount of solute that can dissolve in a solvent at a specific temperature?

   a) Concentration  

   b) Saturation  

   c) Dilution  

   d) Viscosity  


59. Which type of solution has more solute dissolved than a saturated solution at a given temperature?

   a) Unsaturated  

   b) Saturated  

   c) Supersaturated  

   d) Dilute  


60. Henry's law describes the relationship between the pressure of a gas and its solubility in a liquid. What happens to the solubility of a gas in a liquid when the pressure is increased?

   a) Solubility increases  

   b) Solubility decreases  

   c) Solubility remains unchanged  

   d) Solubility depends on the type of gas  


61. What is a defining characteristic of a solution in chemistry?

   a) Heterogeneous mixture  

   b) Particles settle over time  

   c) Homogeneous mixture  

   d) Large particle size  


62. In an aqueous solution, what does the term "solute" refer to?

   a) The substance dissolved in water  

   b) The substance doing the dissolving  

   c) The water itself  

   d) Any gas present in the solution  


63. What distinguishes a suspension from a solution?

   a) Small particle size  

   b) Homogeneous composition  

   c) Particles do not settle  

   d) Heterogeneous composition  


64. What is a characteristic feature of colloids in comparison to solutions and suspensions?

   a) Small particle size  

   b) Clear separation of components  

   c) Particles settle quickly  

   d) Homogeneous composition  


65. Which of the following statements is true about solutions?

   a) They scatter light  

   b) They are always opaque  

   c) They settle upon standing  

   d) They have a uniform composition  


66. What is the primary factor influencing the stability of colloids?

   a) Particle size  

   b) Temperature  

   c) Pressure  

   d) Density  


67. Which type of mixture is characterized by particles that settle over time?

   a) Solution  

   b) Suspension  

   c) Colloid  

   d) Emulsion  


68. In a solution, what does the term "solubility" refer to?

   a) The ability of the solvent to dissolve  

b) The amount of solute that can dissolve in a given solvent at a specific temperature  

   c) The concentration of the solute  

   d) The volume of the solution  


69. Which type of mixture has particles that can be separated through filtration?

   a) Solution  

   b) Suspension  

   c) Colloid  

   d) Emulsion  


70. What is a colloid in chemistry?

a) Homogeneous mixture  

b) Heterogeneous mixture  

c) Pure substance  

d) Element


71. Which of the following is an example of a colloidal system?

a) Saltwater  

b) Lemonade  

c) Milk  

d) Distilled water


72. What is the size range of particles in a colloid?

a) Greater than 1 mm  

b) Between 1 nm and 100 nm  

c) Less than 1 nm  

d) Exactly 1 μm


73. The process of settling down of colloidal particles is known as:

a) Precipitation  

b) Sedimentation  

c) Filtration  

d) Coagulation


74. What is the Tyndall effect in colloids?

a) Dispersion of light by colloidal particles  

b) Precipitation of colloids  

c) Sedimentation of colloids  

d) Coagulation of colloids


75. Which of the following is a common method to stabilize a colloidal solution?

a) Filtration  

b) Sedimentation  

c) Electrophoresis  

d) Addition of electrolytes


76. The process of converting a sol into a gel is known as:

a) Precipitation  

b) Coagulation  

c) Peptization  

d) Sedimentation


77. What is the primary factor influencing the viscosity of colloidal solutions?

a) Temperature  

b) Particle size  

c) Pressure  

d) Concentration


78. Which of the following is an example of a lyophilic sol?

a) Starch in water  

b) Silver iodide in water  

c) Gum in water  

d) Sand in water


79. What happens to the charge on colloidal particles during coagulation?

a) No change  

b) Increases  

c) Decreases  

d) Becomes neutral


80. How do colloids differ from solutions and suspensions?

a) Colloids have larger particles than suspensions  

b) Colloids scatter light, while solutions do not  

c) Solutions have visible particles, unlike colloids  

d) Suspensions do not exhibit the Tyndall effect  


81. What is a common scientific application of colloids?

a) Making lemonade  

b) Blood transfusion  

c) Filtration of tap water  

d) Dissolving sugar in tea  


82. Which type of mixture is most commonly used in technological applications like ink and paint?

a) Solution  

b) Suspension  

c) Colloid  

d) Compound  


83. What property distinguishes a solution from a colloid?

a) Particle size  

b) Transparency  

c) Settling rate  

d) Solubility  


84. Why do solutions conduct electricity?

a) Due to the presence of solutes  

b) Because of the solvent's conductivity  

c) Solutions do not conduct electricity  

d) Only ionic solutions conduct electricity  


85. What is the primary factor influencing the rate at which a solute dissolves in a solvent?

a) Temperature  

b) Pressure  

c) Color  

d) Density  


Also Read Following Chemistry Topics Related Solved MCQs

Physical States of Matter Solved MCQs 

Periodic Table in Chemistry Solved MCQs 

Fundamentals of Chemistry Solved MCQs 

Fundamentals of Chemistry Short Notes 

Matter in Chemistry Solved MCQs 

Chemical Bonding Solved MCQs 

Acids, Bases & Salts Solved MCQs 

General Chemistry Solved MCQs 

Solutions, Collids, and Suspension Notes

Matter and its States Notes

Acids, Bases, and Salts Notes

Chemistry and Branches of Chemistry Solved MCQs 

Labels:
Location: Shikarpur, Sindh, Pakistan

Comments

Post a Comment

Most Read Blogs

Single National Curriculum (SNC): Its Pros & Cons

Single National Curriculum 2020  Background Pakistan is a multi-lingual, multi-cultural, and multi-ethnic country where around 74 different languages are spoken. Out of these 74 different languages, 66 languages are indigenous while the remaining 8 are non-indigenous. Urdu is the national language while English is the official language of Pakistan.  Similarly, Pakistan is the thick and second-largest Muslim-populated country in the world. Approximately 96.5% (≈210 million) people are Muslims, out of which around 85-90% are Sunni and the remaining are the Shia sect Muslims.  These two major sects are further subdivided into different groups on the basis of their particular schools of the so-called Islam ic law. On the other hand Pakistani nation is divided on the basis of political parties, ethnicity, sectarianism, culture, customs, traditions, rituals, socio-economics, and educational differences.  The current government has therefore developed and devised Single N...
5 comments
Read more

School, Community, and Teacher (B.Ed Honours Course)

School, Community, & Teacher  (SCT) in the Context of Teacher Education (B.Ed Honours Course) Background The triad of school, community, and teacher (SCT) forms a critical intersection within the educational landscape, creating an integrated ecosystem essential for fostering a healthy and sustainable teaching and learning environment . In the realm of teacher education, the terms school, teacher, and community carry multifaceted meanings that vary depending on contextual factors. To fully comprehend the overarching goals and objectives of teacher education, it is imperative to explore the synergies and intersections inherent in this SCT framework. In this discussion, we will examine each component of the SCT triad in detail, while also considering related concepts that enrich our understanding of this complex interplay. By unpacking these terms, we aim to illuminate their significance and the ways in which they collectively contribute to a robust educational experience. The sch...
Post a Comment
Read more

Definition and Scope of Statistics (Quantitative Reasoning Course)

Quantitative Reasoning Course for BS Honours Level Students  Definition and Scope of Statistics Statistics is the branch of mathematics that deals with the collection, analysis, interpretation, presentation, and organisation of data. It provides tools and methods to make sense of numerical information, identify patterns, draw inferences, and make informed decisions under uncertainty. The scope of statistics is broad and interdisciplinary: Descriptive Statistics : Summarises and describes the features of a dataset, such as calculating means, medians, or creating charts to visualise data. Inferential Statistics : Uses sample data to make generalisations or predictions about a larger population, often involving hypothesis testing, confidence intervals, and regression analysis. Applied Fields : Extends to economics (e.g., forecasting trends), biology (e.g., clinical trials), social sciences (e.g., surveys), engineering (e.g., quality control), and data science (e.g., machine learning m...
Post a Comment
Read more

Quantitative Reasoning: Statistics and its Relevance in the Context of BS English/Education Course

Introduction to Quantitative Reasoning Course   Quantitative Reasoning (QR) is an ability and an academic skill to use mathematical concepts and procedures. QR often involves interpretation of empirical and numerical data, identification of patterns, flow charts, geometrical shapes, and diagrams for identifying real life problems including offering viable solutions.  QR requires logical reasoning and critical thinking to analyse the real life issues and making informed decisions. Learners often require to have some basic knowledge about statistics numeracy, quantitative values, ratio as well as descriptive and inferential statistical analyses. Hence, in order to have reasonable grasp on QR, learners require to have the basic knowledge about Statistics. In simple words, Statistics plays a very pivotal role in understanding Quantitative Reasoning. What is Statistics? Statistics is one of the Branches of Applied Mathematics or  science of collecting, organising, analysing,...
Post a Comment
Read more

Quantitative Reasoning Statistical Basics

Measures of Central Tendency Measures of central tendency are the specific statistical values which describe the typical values or central position of a dataset. The three most common single statistical values include Mean, Median and Mode.  Arithmetic Mean : Average of all values (sum divided by count). Geometric Mean : nth root of the product of values (used for growth rates). Harmonic Mean : The Reciprocal of the average of reciprocals (used for rates like speed). Median : Middle value when data is ordered. Quartiles : Values dividing data into four equal parts (Q1=25th, Q2=50th=median, Q3=75th percentile). Mode : Most frequent value. Measures of Dispersion Range : Difference between maximum and minimum values. Quartile Deviation : Half the interquartile range (Q3 - Q1)/2. Mean Deviation : Average absolute deviation from the mean. Variance : Average squared deviation from the mean. Standard Deviation : Square root of variance (spread in original units). Coefficient of Varia...
Post a Comment
Read more

Dilema of Democracy & Political Leadership Crisis in Pakistan

Dilemma of Democracy & Political Leadership Crisis in Pakistan Overview Since mid 20th century,  Democracy is being considered the most accomplished process and a form of government where only people’s representatives have the right and authority to run the affairs of the state including forming certain constitutional rules and regulations.  Through democracy, people choose their representatives following a well-defined system of voting. The elected representatives then govern the affairs of the state on behalf of their people for a certain period of time (usually 4 to 5 years).  These representatives actually ensure the authority and rule of law for their people in the larger interests of any nation, state, or country. On the other hand, they are also held accountable and responsible for their actions and exercising of the powers within certain limitations as defined in the constitution or legislated through parliament.  Although Pakistan is a pure democratic...
Post a Comment
Read more

Sampling Techniques

Sampling Techniques: Quantitative Reasoning Course for BS Honours Level Students  Sampling technique involves selecting a subset of a population to study, enabling researchers to draw quantitative, qualitative and mixed conclusions about the larger group without studying everyone.  In Linguistics and Education or in any other field of study, sampling is crucial because populations (e.g., language speakers, students, teachers, customers,  users, and viewers etc.) are often large and diverse, making it impractical to study every individual.  The choice of sampling technique impacts the study’s validity, generalisability, and feasibility. Types of Sampling Techniques Basically, there are two main types of sampling techniques that are further subdivided. Both of these types including subtypes are explained below with examples. 1. Probability Sampling (Random-based, ensures every unit has a known chance of selection) Simple Random Sampling : Every individual in the popul...
Post a Comment
Read more

AFGHANISTAN CRISES: WHERE DOES PAKISTAN STAND?

Afghanistan Crises and Pakistan  Background According to history, Afghanistan has remained a war zone and a plan to invade central and south Asia for a long time. All of the invaders' troops entered South Asia through Afghanistan, from the Aryans to the Mughals. Afghanistan was the target of two major invasions in recent history. The former Soviet Union (USSR) launched its first invasion in December 1979, which lasted until 1989 and culminated in the dissolution of the Soviet Union into a number of distinct states. However, a significant portion of the formal USSR's territory, now known as the Russian Federation, is still there. As a result of the so-called September 11, 2001 attacks on the World Trade Center in New York, the United States of America (USA) and its NATO (North Atlantic Treaty Organization) allies, including Great Britain, launched the second invasion in 2001. Al-Qaeda's leader, Usama Bin Ladin, was allegedly blamed for the 9/11 attacks and claims that Al-Qa...
Post a Comment
Read more

Sampling Techniques, Distribution, CLT, Hypothesis Testing Basics, Z-Test, T-Test, ANOVA, Chi-Square, Regression Analysis

Sampling Techniques, Distribution, CLT, Hypothesis Testing Basics, Z-Test , T-Test , ANOVA , Chi-Square , Regression Analysis , etc. (Quantitative Reasoning Course for BS/ B.Ed Hons Level) The fundamental concepts of inferential statistics form a logical progression: we begin by selecting a representative sample , describe its distribution , use the Central Limit Theorem to justify normal-based methods, frame hypotheses, and finally apply the appropriate parametric or non-parametric test to make evidence-based conclusions about the population. Below is a rewritten, student-friendly overview that emphasises how each topic builds on the previous one , with clear illustrations, formulas, decision rules, and real-life examples suitable for undergraduate honours students. 1. Sampling Techniques & Sampling Distribution 🪚 Sampling Techniques:  Sampling is the process of selecting a subset of individuals from a larger population to make statistical inferences. The goal is to obta...
Post a Comment
Read more

SWOT Analysis within the Context of Education

 SWOT Analysis in Education for Curriculum Development, Classroom Management, and Planning Introduction   It was the Stanford Research Institute (SRI) which coined the term SWOT Analysis during the 1960s. Initially, the term was used for business management consultancy but later on, researchers and professionals started using it in different fields mainly for planning purposes. SWOT  analysis is a strategic planning tool or a framework which is used to identify and evaluate the Strengths, Weaknesses, Opportunities, and Threats related to an organization or a specific project including setting its standing operating procedures (SOPs).  It is widely used in business studies, politics, strategic military planning, think tanks, policy-making, international relations, socio-economic as well as socio-political dimensions, and education etc. Similarly, in the context of education, SWOT analysis provides a very comprehensive framework for assessing various aspects of educat...
Post a Comment
Read more