Assertion: Dinegative anion of oxygen ( O 2-) is quite common but dinegative anion of sulphur ( S 2-) is less common. Reason: Covalency of oxygen is two.

Question

Assertion: Dinegative anion of oxygen ( O 2-) is quite common but dinegative anion of sulphur ( S 2-) is less common. Reason: Covalency of oxygen is two. (A) If both assertion and reason are true and reason is a correct explanation of the assertion (B) If both the assertion and reason are true but the reason is not a correct explanation of the assertion (C) If the assertion is true but the reason is false (D) If both the assertion and reason are false

Tardigrade Admin · Accepted Answer

Oxygen is second most electronegative element after fluorine. So it can easily gain electrons to form dinegative anion (O2-) while sulphur is not so electronegative element as oxygen.

Q. Assertion : Dinegative anion of oxygen $(O^{2 -})$ is quite common but dinegative anion of sulphur $(S^{2 -})$ is less common.
Reason : Covalency of oxygen is two.

If both assertion and reason are true and reason is a correct explanation of the assertion

If both the assertion and reason are true but the reason is not a correct explanation of the assertion

If the assertion is true but the reason is false

If both the assertion and reason are false

Oxygen is second most electronegative element after fluorine. So it can easily gain electrons to form dinegative anion $(O^{2 -})$ while sulphur is not so electronegative element as oxygen.

Q. Assertion : Dinegative anion of oxygen (O2−) is quite common but dinegative anion of sulphur (S2−) is less common. Reason : Covalency of oxygen is two.