Skip to main content

Acids, Bases & Salts in Chemistry Solved MCQs

Acids, Bases and Salts


Chemistry Solved MCQs

Which of the following is a characteristic property of acids?

a)     They taste sweet.

b)     They turn litmus paper blue.

c) They release hydrogen ions (H⁺) in aqueous solutions.

d)     They are slippery to touch.

 

2.     Which acid is commonly found in citrus fruits like lemons and oranges?

a)     Sulfuric acid

b)     Hydrochloric acid

c)     Citric acid

d)     Acetic acid

 

3.     When an acid reacts with a metal, which gas is usually produced?

a)     Oxygen gas (O₂)

b)     Hydrogen gas (H₂)

c)     Carbon dioxide gas (CO₂)

d)     Nitrogen gas (N₂)

 

4.     Which acid is commonly used in car batteries?

a)     Nitric acid

b)     Sulfuric acid

c)     Hydrochloric acid

d)     Phosphoric acid

 

5.     Which of the following is a strong acid?

a)     Acetic acid (CH₃COOH)

b)     Formic acid (HCOOH)

c)     Hydrochloric acid (HCl)

d)     Carbonic acid (H₂CO₃)

 

6.     What is the pH range of acidic solutions on the pH scale?

a)     0-3

b)     4-6

c)     7-9

d)     10-14

7.     Which acid is responsible for the sour taste in yogurt and sourdough bread?

a)     Lactic acid

b)     Tartaric acid

c)     Ascorbic acid

d)     Malic acid

 

8.     Which acid is used in the laboratory for preparing standard solutions and titrations?

a)     Nitric acid

b)     Acetic acid

c)     Hydrochloric acid

d)     Sulfuric acid

 

9.     When an acid is added to water, what is the general trend in the concentration of hydrogen ions (H⁺)?

a)     Increases

b)     Decreases

c)     Stays the same

d)     Fluctuates randomly

 

10.  Which acid is produced in muscles during intense exercise, leading to muscle fatigue?

a)     Sulfuric acid

b)     Lactic acid

c)     Citric acid

d)     Hydrochloric acid

 

11.  Which of the following is a characteristic property of acids?

a)     Bitter taste

b)     Slippery feel

c)     Turns blue litmus paper red

d)     pH above 7

 

12.  What is the chemical formula for hydrochloric acid?

a)     HCl2

b)     H2SO4

c)     HNO3

d)     HCl

 

13.  Which acid is commonly found in vinegar?

a)     Hydrochloric acid

b)     Nitric acid

c)     Acetic acid

d)     Sulfuric acid

 

14.  Which of the following is a strong acid?

a)     Acetic acid (CH3COOH)

b)     Formic acid (HCOOH)

c)     Hydrochloric acid (HCl)

d)     Carbonic acid (H2CO3)

 

15.  What is the pH value of a neutral solution?

a)     0

b)     7

c)     14

d)     It varies depending on the solution

 

16.  Which acid is produced by the stomach to aid in digestion?

a)     Hydrochloric acid (HCl)

b)     Phosphoric acid (H3PO4)

c)     Sulfuric acid (H2SO4)

d)     Carbonic acid (H2CO3)

 

17.  Which of the following substances is considered an Arrhenius acid?

a)     Sodium hydroxide (NaOH)

b)     Hydrochloric acid (HCl)

c)     Ethanol (C2H5OH)

d)     Ammonia (NH3)

 

18.  Which of the following is a characteristic property of bases?

a)     Sour taste

b)     Turns blue litmus paper red

c) Conducts electricity in solid state

d) Releases hydrogen ions in water

 

19.  Which of the following is a strong base commonly used in household cleaning products?

a)     Ammonia (NH3)

b)     Sodium hydroxide (NaOH)

c)     Citric acid (C6H8O7)

d)     Carbon dioxide (CO2)

 

20.  The pH scale measures the concentration of:

a)     Hydrogen ions (H+)

b)     Hydroxide ions (OH-)

c)     Water molecules (H2O)

d) Carbon dioxide molecules (CO2)

 

21.  Which of the following is considered a weak base?

a)     Sodium hydroxide (NaOH)

b)     Ammonia (NH3)

c)     Potassium hydroxide (KOH)

d)     Calcium hydroxide (CaOH2)

 

22.  Which of the following is the chemical formula for a base known as "caustic soda"?

a)     HCl

b)     NaOH

c)     KOH

d)     NH3

 

23.  The reaction between an acid and a base is known as:

a)     Precipitation

b)     Combustion

c)     Redox reaction

d)     Neutralization

 

24.  Which of the following is the correct balanced chemical equation for the neutralization of hydrochloric acid (HCl) with sodium hydroxide (NaOH)?

a)     HCl + NaOH → H2O + NaCl

b)     HCl + NaOH → NaCl + H2O

c)  H2SO4 + NaOH → Na2SO4 + H2O

d)     CH3COOH + KOH → CH3COOK + H2O

 

25.  When a base reacts with a metal, the products formed are:

a)     Salt and water

b)     Salt and hydrogen gas

c)     Salt and oxygen gas

d)     Salt and carbon dioxide

 

26.  Which of the following is a common indicator used to determine the pH of a solution?

a)     Sodium chloride

b)     Starch

c)     Sodium hydroxide

d)     Phenolphthalein

 

27.  Which of the following is not a property of bases?

a)     Slippery to touch

b)     Bitter taste

c)     Turns red litmus paper blue

d)     Releases hydroxide ions (OH-) in water

 

28.  What is the pH range of a typical base?

a)     0-4

b)     5-8

c)     9-14

d)     7

 

29.  Which of the following is a weak base?

a)     Potassium hydroxide (KOH)

b)     Sodium hydroxide (NaOH)

c)     Ammonia (NH₃)

d)     Calcium hydroxide (CaOH)₂)

 

30.  What is the product when a base reacts with an acid?

a)     Salt and water

b)     Hydrogen gas

c)     Carbon dioxide

d)     Oxygen gas

 

31.  Which of the following is an example of an alkaline substance?

a)     Lemon juice

b)     Vinegar

c)     Milk of magnesia

d)     Orange juice

 

32.  Which base is commonly found in antacid medications to neutralize excess stomach acid?

a)     Sodium chloride (NaCl)

b)     Potassium hydroxide (KOH)

c) Magnesium hydroxide (MgOH)₂)

d) Ammonium sulfate (2NH₄+SO₄)

 

33.  What is the correct formula for the hydroxide ion?

a)     OH²⁻

b)     HO⁻

c)     OH⁻

d)     H₂O

 

34.  Which of the following is a strong base?

a)     Ammonia (NH₃)

b)     Sodium hydroxide (NaOH)

c)     Acetic acid (CH₃COOH)

d)     Carbon dioxide (CO₂)

 

35.  Which of the following compounds is a salt?

a)     Sugar (C12H22O11)

b)     Sodium chloride (NaCl)

c)     Ethanol (C2H5OH)

d)     Methane (CH4)

 

36.  Salts are formed through the reaction between:

a)     Two acids

b)     An acid and a base

c)     Two bases

d)     A metal and a non-metal

 

37.  Which of the following is NOT a characteristic property of salts?

a)     They are often soluble in water.

b)     They have a salty taste.

c)     They conduct electricity when in solid state.

d)     They are composed of positive and negative ions.

 

38.  The pH of a solution formed by dissolving a salt in water depends on:

a)     The colour of the salt

b)     The mass of the salt

c)     The nature of the acid used

d)     The nature of the salt and its ions

 

39.  Which of the following salts is commonly used in agriculture as a fertilizer?

a)     Sodium chloride (NaCl)

b)     Potassium sulfate (K2SO4)

c)     Calcium carbonate (CaCO3)

d)     Magnesium oxide (MgO)

 

40.  The chemical formula of Epsom salt is:

a)     NaCl

b)     MgSO4

c)     CaCO3

d)     KNO3

 

41.  When a salt dissolves in water, it dissociates into:

a)     Molecules

b)     Atoms

c)     Ions

d)     Compounds

 

42.  The process of neutralizing an acid and a base to produce salt and water is called:

a)     Dissociation

b)     Oxidation

c)     Reduction

d)     Neutralization

 

43.  Which of the following salts is responsible for water hardness?

a)     Sodium chloride (NaCl)

b)     Potassium nitrate (KNO3)

c)     Calcium carbonate (CaCO3)

d) Ammonium sulfate (2NH4+SO4)

 

44.  The colour of the flame produced by burning a salt is due to:

a)     The metal cation in the salt

b)  The non-metal anion in the salt

c) The heat applied during burning

d) The type of acid used in its preparation

 

45.  Which of the following is a common use of acids in daily life?

a)     Making soap

b)     Neutralizing stomach acidity

c)     Whitening teeth

d)     Polishing silverware

 

46.  Which acid is commonly used in car batteries?

a)     Hydrochloric acid

b)     Sulfuric acid

c)     Nitric acid

d)     Acetic acid

 

47.  Which base is used in household cleaning products due to its ability to dissolve grease and oils?

a)     Sodium hydroxide (lye)

b)     Ammonium hydroxide

c)     Potassium hydroxide

d)     Calcium hydroxide

 

48.  Which salt is commonly used as a food preservative and in the pickling process?

a)     Sodium chloride

b)     Calcium carbonate

c)     Potassium nitrate

d)     Sodium bicarbonate

 

49.  Which acid is found in citrus fruits and is commonly used in food and beverage industries for its sour taste and preservative properties?

a)     Hydrochloric acid

b)     Sulfuric acid

c)     Citric acid

d)     Nitric acid

 

50.  Which of the following is an important use of bases in agriculture?

a)     Flavouring agent in food

b)     Softening hard water

c)     Cleaning agent in households

d)     Soil pH adjustment

 

51.  Which salt is used for melting ice on roads and sidewalks in cold climates?

a)     Sodium chloride

b)     Calcium carbonate

c)     Ammonium nitrate

d)     Potassium sulfate

 

52.  What is the primary use of hydrochloric acid in industrial processes?

a)     Flavouring agent in food

b)     Battery electrolyte

c)     Fertilizer production

d) Cleaning and pickling of metals

 

53.  Which base is commonly used in the production of paper and textiles?

a)     Sodium hydroxide

b)     Ammonium hydroxide

c)     Potassium hydroxide

d)     Calcium hydroxide

 

54.  Which acid is used in photography and tanning industries?

a)     Hydrochloric acid

b)     Sulfuric acid

c)     Nitric acid

d)     Acetic acid

 

55.  Calcium carbonate (CaCO3), a common salt, is used in the production of:

a)     Fertilizers

b)     Toothpaste and antacids

c)     Explosives

d)     Detergents

 

56.  Epsom salt, magnesium sulfate (MgSO4), is often used for:

a)     Fertilizing plants

b)     Baking soda production

c)     Treating muscle soreness and relaxing baths

d)     Leather tanning

 

57.  Common table salt, sodium chloride (NaCl), is used primarily for:

a) Food preservation and flavouring

b)     Water purification

c)     Manufacturing glass

d)     Battery production

 

58.  Which base is used in agriculture as a soil amendment to raise the pH of acidic soils?

a)     Potassium hydroxide

b)     Ammonium hydroxide

c)     Calcium hydroxide

d)     Sodium hydroxide

 

59.  Which base is found in antacid medications to neutralize excess stomach acid?

a)     Sodium hydroxide

b)     Calcium hydroxide

c)     Ammonium hydroxide

d)     Magnesium hydroxide

 

60.  Which base is commonly used in household cleaning products due to its ability to dissolve grease and oils?a)  Sodium hydroxide (caustic soda)

b)  b) Calcium hydroxide (slaked lime)

c) c) Ammonium hydroxide (ammonia water)

d)   d) Potassium hydroxide


Further Chemistry Related Solved MCQs as Suggestrd Reading 

1. Fundamentals of Chemistry Solved MCQs 

2. Fundamentals of Chemistry Short Notes 

3. Matter in Chemistry Solved MCQs 

4. Chemical Bonding Solved MCQs 

Labels:
Location: Larkana, 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

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

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

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

Social Media Literacy and Educational Approaches in the 21st Century Teaching & Learning Context: B.Ed Honours Course Content

Social Media Literacy & Modes of Education in 21st Century (B.Ed Honours) Course Content Introduction The term social media refers to the digital interaction among different social groups. One of the most integral aspects of human life in the 21st century is social media, and it has significantly transformed how individuals communicate, interact, and gain information. Social media has opened the door to new opportunities for learning and information sharing including diverse challenges for teachers and learners in the process of teaching and learning.  In less advanced countries like Pakistan, teachers are still reluctant to use social media platforms while teaching because they lack certain skills to use different social media platforms effectively. As a result of it, such teachers rely on outdated traditional methods of teaching. On the other hand, many students believe that the purpose of social media use is just for entertainment and informal interaction with digital friend...
Post a Comment
Read more

BOOKS ARE THE BEST OF ALL THE FRIENDS!

Books are the Best of all the Friends  Overview: Francis Bacon rightly said that “some books are tasted, others to be swallowed, and some few to be chewed and digested”. In his quote, Bacon emphasized that there are very few books only to be read out as wholly because they draw our attention with diligence and develop curiosity as we go on reading them further and further. Actually, books are the food for our brains and thoughts. They provide us knowledge, and deep information and develop creativity along with critical thinking skills.  Books lead us towards a world of fantasy and imagination and pose various logical and rational questions and intend to seek our reflection. According to Charles W. Eliot, “books are the quietest and most constant of friends; they are the most accessible and wisest of counselors, and the most patient of teachers”. Books are best friends and they are always ready to talk to us and share their information and experiences with us. Books are mi...
Post a Comment
Read more

We'll Meet Again: A Poem by Raja Bahar Khan Soomro

We Shall Meet Again (A Poem)   Introduction   We come across many bitter experiences in our lives. One of these bitter experiences is the separation from our loved ones. Though we don't want to be get separated but life brings such situations where we don't have any other options except separation. In this poem, I have reflected on my feelings and desires that a day will come when I'll meet again with my dearest darling. So, let's now read that when and how I'll meet with my love.                 We'll Meet Again When spring awakens in a tender bloom,   And cuckoos sing beneath the silver moon,   In midnight’s hush, where melodies cascade,   We’ll meet again, where dreams of love are made.   We’ll meet again by oceans’ endless shore,   Where mountains rise and eagle spirits soar.   In dawn’s soft glow, where shadows gently play,   Our hearts will dance in rain’s sweet,...
2 comments
Read more

Different Educational Theories & Approaches Solved MCQs

Different Education al Theories, Approaches, & Perspectives Solved MCQs   1. Which level of Bloom's Taxonomy is associated with basic recall and recognition of facts?    a) Analysis    b) Evaluation    c) Comprehension    d) Synthesis 2. At which level of Bloom's Taxonomy do students demonstrate their ability to apply knowledge in new and unique situations?    a) Knowledge    b) Comprehension    c) Application    d) Synthesis 3. Which of the following is a key component of Bloom's Taxonomy and involves breaking down information into parts to explore understandings and relationships?    a) Synthesis    b) Analysis    c) Evaluation    d) Knowledge 4. Which level of Bloom's Taxonomy involves the creation of new ideas or concepts by combining information in innovative ways?    a) Knowledge    b) Comprehension    c) Application ...
Post a Comment
Read more

KASHMIR ISSUE; WHAT IS THE WAY FORWARD?

Kashmir Issue and the Way Forward                                   Overview: Whether it was an inability and incapability of the Britishers or intentional negligence towards proper demarcation of territorial boundaries before leaving the Indian Sub-continent or even pressure on Lord Mount Batten built by the Congress party’s leadership particularly Pandit Jawaharlal Nehru, however, it has left everlasting effects and consequences in terms of loss of innocent human lives, violence, hatred, military escalations, and socio-economic tensions in the fate of the people of South Asia since 1947 to till date.  One of the greatest territorial issues and tensions which I am going to highlight through this article blog is the Kashmir issue which has been remaining the bone of contention between Pakistan and India.  The United Kingdom, currently known as England (Great Britain) which is one of th...
Post a Comment
Read more