Assertion : Dinegative anion of oxygen (O^{2- | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) The Assertion is incorrect because the dinegative anion of sulphur $(S^{2-})$ is actually very common (e.g.,in metal sulphides like $ZnS$,$FeS$),w

Vedclass · Accepted Answer

If both the Assertion and Reason are incorrect.

Vedclass · Answer

(D) The Assertion is incorrect because the dinegative anion of sulphur $(S^{2-})$ is actually very common (e.g.,in metal sulphides like $ZnS$,$FeS$),whereas the formation of $O^{2-}$ is energetically demanding due to high electron-electron repulsion in the small oxygen atom.The Reason is also incorrect because the covalency of oxygen is generally two,but this is not the reason for the stability or commonality of its anions.Therefore,both the Assertion and the Reason are incorrect.

List-$I$ (Oxoacids of Sulphur)	List-$II$ (Bonds)
$A$. Peroxodisulphuric acid	$I$. Two $S-OH$,Four $S=O$,One $S-O-S$
$B$. Sulphuric acid	$II$. Two $S-OH$,One $S=O$
$C$. Pyrosulphuric acid	$III$. Two $S-OH$,Four $S=O$,One $S-O-O-S$
$D$. Sulphurous acid	$IV$. Two $S-OH$,Two $S=O$

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.

Similar Questions

The elements with highest and lowest electron gain enthalpy in group $16$ respectively are

Which of the following activities results in the formation of oleum in the manufacture of sulphuric acid by the contact process?

Which of the following has peroxy linkage?

What is formed by the reaction of ozone with mercury?

Vedclass Test Series

Exam Paper Generator

Online Exam Module

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.