100+ Chemistry Chemical Bonding Questions and Answers Pdf - 3

Question: 11

Define ionisation energy?

The energy required to remove electron from neutral gaseous atom is called ionisation energy.

Question: 12

What is a chemical equation?

A chemical equation is a short scientific representation of a chemical reaction.

Question: 13

Explain the differences between an atom and an ion?

Atom

i. In an atom, number of protons and electrons are equal.

ii. Atom is neutral.

Ion.

i. In an ion, the number of protons and electrons are not equal.

ii. Ion is a charged particle.

Question: 14

What is meant by reduction?

The process which involves addition of electrons is called as reduction.

Question: 15

How does copper react with concentrated sulphuric acid?

When copper turnings are treated with concentrated sulphuric acid, sulphur dioxide gas is formed.