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CHEMICAL BONDING & TYPES OF BONDS SOLVED MCQs IN CHEMISTRY

Chemical Bonding

What type of bond forms when electrons are shared between atoms?

a) Ionic bond

b) Covalent bond

c) Metallic bond

d) Hydrogen bond

 

Which of the following elements is most likely to form an ionic bond with chlorine (Cl)?

a) Sodium (Na)

b) Oxygen (O)

c) Carbon (C)

d) Nitrogen (N)

 

In a covalent bond, electrons are:

a) Transferred from one atom to another

b) Shared between atoms

c) Donated by one atom

d) Found only in the nucleus

 

What is the charge on a cation?

a) Positive

b) Negative

c) Neutral

d) It varies

 

Which of the following molecules has a nonpolar covalent bond?

a) HCl

b) H2O

c) CO2

d) NH3

 

What type of bond is formed between a metal and a non-metal in an ionic compound?

a) Covalent bond

b) Metallic bond

c) Ionic bond

d) Van der Waals bond

 

The chemical formula for sodium chloride is:

a) NaCl2

b) Na2Cl

c) NaCl

d) Na2Cl2

Which of the following substances has a network covalent bond structure?

a) Sodium chloride (NaCl)

b) Diamond (C)

c) Water (H2O)

d) Hydrogen peroxide (H2O2)

 

What is the maximum number of electrons that can occupy the first energy level (n=1) in an atom?

a) 2

b) 8

c) 18

d) 32

 

Which of the following is NOT a type of chemical bond?

a) Hydrogen bond

b) Ionic bond

c) Van der Waals bond

d) Magnetic bond

 

In a covalent bond, electrons are:

a) Transferred from one atom to another

b) Shared between two atoms

c) Located in the nucleus

d) Lost by both atoms

 

What is the bond angle in a water (H2O) molecule?

a) 90 degrees

b) 109.5 degrees

c) 120 degrees

d) 180 degrees

 

Which of the following molecules exhibits polar covalent bonding?

a) O2

b) N2

c) H2

d) HCl

 

What type of bond exists between atoms in a metallic lattice?

a) Ionic bond

b) Covalent bond

c) Metallic bond

d) Hydrogen bond

                          

What is the main factor that determines the strength of an ionic bond?

a) The size of the ions

b) The number of electrons

c) The electronegativity difference between ions

d) The temperature

 

Which of the following molecules has a triple covalent bond?

a) O2

b) N2

c) H2

d) CH4

 

The octet rule states that atoms tend to:

a) Lose electrons to achieve a stable electron configuration

b) Gain electrons to achieve a stable electron configuration

c) Share electrons to achieve a stable electron configuration

d) Have an odd number of electrons in their outermost shell

 

Which element forms diatomic molecules held together by a single covalent bond in its natural state?

a) Carbon (C)

b) Hydrogen (H)

c) Oxygen (O)

d) Sodium (Na)

 

In a metallic bond, what is responsible for holding the metal atoms together?

a) Sharing of electrons

b) Transfer of electrons

c) The lattice structure of Cations and anions

d) The sea of electrons

 

Which of the following molecules exhibits hydrogen bonding?

a) CH4 (Methane)

b) H2O (Water)

c) CO2 (Carbon dioxide)

d) NH3 (Ammonia)

 

The bond formed by the electrostatic attraction between oppositely charged ions is called a:

a) Covalent bond

b) Metallic bond

c) Ionic bond

d) Hydrogen bond

 

A covalent bond is formed between:

a) A metal and a non-metal.

b) Two non-metals.

c) A metal and another metal.

d) A metal and a noble gas.

 

Which of the following elements is most likely to form ionic bonds?

a) Hydrogen (H)

b) Oxygen (O)

c) Sodium (Na)

d) Carbon (C)

 

In an ionic bond, what happens to electrons?

a) Electrons are shared between atoms.

b) Electrons are completely transferred from one atom to another.

c) Electrons are freely moving between atoms.

d) Electrons are in a sea of electrons surrounding the atoms.

 

Which bond is characterized by the unequal sharing of electrons due to differences in electronegativity?

a) Nonpolar covalent bond

b) Polar covalent bond

c) Ionic bond

d) Metallic bond

 

What is the shape of a molecule with tetrahedral electron domain geometry and no lone pairs on the central atom?

a) Linear

b) Trigonal planar

c) Tetrahedral

d) Octahedral

 

What type of bond is formed between atoms of the same element with identical electro-negativities?

a) Polar covalent bond

b) Nonpolar covalent bond

c) Ionic bond

d) Metallic bond

 

Which of the following elements typically forms covalent bonds?

a) Sodium (Na)

b) Oxygen (O)

c) Potassium (K)

d) Calcium (Ca)

 

Which of the following molecules has a linear molecular geometry?

a) H2O (water)

b) NH3 (ammonia)

c) CO2 (carbon dioxide)

d) CH4 (methane)

 

Which of the following is an example of a nonpolar covalent bond?

a) H2O (water)

b) HCl (hydrochloric acid)

c) CO2 (carbon dioxide)

d) NaCl (table salt)

 

Which of the following is NOT an example of an intermolecular force?

a. Ionic bond

b. Hydrogen bond

c. Van der Waals forces

d. Dipole-dipole interaction

 

Intermolecular forces are responsible for holding together which type of substances?

a. Atoms

b. Ions

c. Molecules

d. Electrons

 

Which of the following intermolecular forces is the weakest?

a. Hydrogen bond

b. Dipole-dipole interaction

c. Van der Waals forces

d. Ionic bond

 

Which of the following molecules can form hydrogen bonds with water molecules?

a. CH4

b. NH3

c. CO2

d. H2S

 

In which of the following substances are London dispersion forces the primary intermolecular forces?

a. HCl

b. CH3OH

c. Ne

d. H2O

 

Which factor is most important in determining the strength of dipole-dipole interactions between two molecules?

a. The size of the molecules

b. The polarity of the molecules

c. The temperature

d. The mass of the molecules

 

Which of the following substances has the highest boiling point due to its intermolecular forces?

a. Methane (CH4)

b. Ethanol (C2H5OH)

c. Hydrogen fluoride (HF)

d. Oxygen (O2)

 

Which intermolecular force is responsible for the "stickiness" of water molecules?

a. Dipole-dipole interaction

b. London dispersion forces

c. Hydrogen bond

d. Covalent bond

 

Which of the following molecules can exhibit both hydrogen bonding and London dispersion forces?

a. CH4

b. H2O

c. CO2

d. N2

 

The strength of London dispersion forces generally increases with:

a. Increasing molecular size

b. Increasing molecular weight

c. Increasing temperature

d. Increasing polarity

 

In which type of molecule is ion-dipole interaction commonly observed?

a) Polar covalent molecules

b) Nonpolar covalent molecules

c) Ionic compounds dissolved in a polar solvent

d) Gases with London dispersion forces

 

Which of the following substances has the highest boiling point?

a) N2 (nitrogen gas)

b) O2 (oxygen gas)

c) Cl2 (chlorine gas)

d) F2 (fluorine gas)

 

Which molecule can exhibit both hydrogen bonding and dipole-dipole forces?

a) H2O (water)

b) CH4 (methane)

c) NH3 (ammonia)

d) CO2 (carbon dioxide)

 

Which intermolecular force is the weakest among the following?

a) Ionic bonding

b) Hydrogen bonding

c) Dipole-dipole forces

d) London dispersion forces

 

Which of the following substances primarily relies on London dispersion forces for intermolecular interactions?

a) Water (H2O)

b) Hydrogen fluoride (HF)

c) Methane (CH4)

d) Hydrogen chloride (HCl)

 

In which of the following compounds are dipole-dipole forces the predominant intermolecular forces?

a) O2 (oxygen gas)

b) H2 (hydrogen gas)

c) CO2 (carbon dioxide)

d) HCl (hydrochloric acid)

 

Which factor contributes most significantly to the strength of London dispersion forces between two molecules?

a) Molecular size

b) Molecular polarity

c) Hydrogen bonding

d) Molecular weight

 

Which type of intermolecular force exists between nonpolar molecules?

a) Ionic bonding

b) Hydrogen bonding

c) Dipole-dipole forces

d) London dispersion forces

Answer: d) London dispersion forces

 

The strength of intermolecular forces generally increases with:

a) Decreasing molecular size

b) Increasing molecular weight

c) Increasing temperature

d) Increasing pressure

 

What types of intermolecular forces are present in a mixture of acetone (CH3COCH3) and ethanol (C2H5OH)?

a) Hydrogen bonding

b) Dipole-dipole forces

c) London dispersion forces

d) All of the above

 

Which of the following substances would have the highest boiling point?

a) CH4

b) CCl4

c) CH3OH

d) C6H6

 

Which molecule can form hydrogen bonds with itself?

a) H2O

b) CO2

c) CH3

d) CH4

 

Which of the following statements about ion-dipole forces is correct?

a) They only exist in ionic compounds.

b) They are weaker than London dispersion forces.

c) They involve interactions between ions and polar molecules.

d) They are the strongest intermolecular forces.



Also Read:

Chemical Bonding Short Notes 

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Location: Larkana, Sindh, Pakistan

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