Assertion (A): Ammonia does not conduct electricity in gaseous or liquid state.

Reason (R): Ions in ammonia gas or liquid ammonia are not free to move.

1. Both A and R are true and R is the correct explanation of A.
2. Both A and R are true but R is not the correct explanation of A.
3. A is true but R is false.
4. A is false but R is true.

Assertion (A): Ammonia is dried by passing through a drying tower containing CaO.

Reason (R): Ammonia being basic in nature reacts with other drying agents.

1. Both A and R are true and R is the correct explanation of A.
2. Both A and R are true but R is not the correct explanation of A.
3. A is true but R is false.
4. A is false but R is true.

Assertion (A): In the preparation of ammonia, hydrogen is obtained by Bosch process.

Reason (R): Hydrogen and nitrogen are used in the ratio 1:3.

1. Both A and R are true and R is the correct explanation of A.
2. Both A and R are true but R is not the correct explanation of A.
3. A is true but R is false.
4. A is false but R is true.

Assertion (A): Haber's process is used to manufacture ammonia.

Reason (R): The catalyst used in this process is vanadium oxide or platinum.

1. Both A and R are true and R is the correct explanation of A.
2. Both A and R are true but R is not the correct explanation of A.
3. A is true but R is false.
4. A is false but R is true.