Chemical Bonding and Reactions MCQ question and answer with solution

1

What is positively charged ion called?

A) Molecule B) Cations C) Anion D) Charged Ion

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Answer & Solution

Answer: Option B

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2

What happens when a chemical bond is formed?

A) Energy is always absorbed B) Energy is always released C) More energy is released than it absorbed D) Energy is neither released nor absorbed

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Answer & Solution

Answer: Option B

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3

When a chemical bond is formed, there is decrease in

A) kinetic energy B) potential energy C) repulsive force D) attractive force

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Answer & Solution

Answer: Option B

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4

Which of the following theory said that bond is formed between two atoms either by sharing or transfer of valence electrons?

A) Valence shell electron pair repulsion B) Molecular orbital theory C) Valence bond theory D) Electronic theory of chemical bonding

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Answer & Solution

Answer: Option D

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5

The product of equivalent weight and valency of an element is equal to

A) vapour density B) specific heat C) atomic weight D) molecular weight

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Answer & Solution

Answer: Option D

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6

Valence electrons are present in the:

A) innermost as well as outermost shell of an atom B) outermost shell of an atom C) innermost shell of an atom D) just outside an atom

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Answer & Solution

Answer: Option B

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7

The atomic number of an element is 8. How many electrons will it gain to form a compound with sodium?

A) One B) Two C) Three D) Four

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Answer & Solution

Answer: Option B

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8

Electrovalent compound's

A) melting points are low B) boiling points are low C) conduct current in fused state D) insoluble in polar solvent

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Answer & Solution

Answer: Option C

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9

An example of an element whose molecules have three valence electrons?

A) Silicon B) Copper C) Germanium D) Aluminium

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Answer & Solution

Answer: Option D

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10

The electrovalent compounds is made up of

A) electrically charged molecules B) neutral molecules C) neutral atoms D) electrically charged atoms or groups of atoms

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Answer & Solution

Answer: Option D

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Chemical Bonding and Reactions MCQ question and answer with solution | Chemistry Gk MCQs