Question

Assertion (A): On adding ammoniacal silver nitrate to ethyne, it gives a white precipitate.

Reason (R): The above reaction forms white silver acetylide.

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.

Options

• (1)

• (2)

• (3)

• (4)

Answer 1

(1)

Explanation:

Ethyne reacts with ammoniacal silver nitrate solution to form a white precipitate. Therefore, the Assertion (A) is true.

The white precipitate formed is silver acetylide. Therefore, the Reason (R) is also true.

Hence, both A and R are true and R is the correct explanation of A.