Question

Assertion (A): If the electron affinity value is high, anions are formed easily.

Reason (R): Ionic bonding is favoured by high electron affinity of one of the atoms.

Options

• Both A and R are true and R is the correct explanation of A.

• Both A and R are true but R is not the correct explanation of A.

• A is true but R is false.

• A is false but R is true.

Answer 1

Both A and R are true and R is the correct explanation of A.

Explanation:

When the electron affinity value is high, the anion forms quickly. A high (negative) electron affinity indicates that an atom releases a considerable amount of energy while gaining an electron, indicating that it is strongly attracted to electrons. This makes it easier for the atom to receive an electron and produce a negative ion (anion). Hence, the assertion (A) is true. Electron affinity promotes electron acceptance, a stage in ionic bond formation. As a result, reason (R) is true and accurately explains Assertion (A).