The percentage ionic character of binary compound A-B is gi…

Chemistry Classification of Elements and Periodicity Electron Affinity Comprehension

Published by: CGP EDU Academic Team

Published on: August 13, 2026

The percentage ionic character of binary compound A-B is given by

% ionic character

= 16 (X A – X B ) + 3.5 (X A – X B ) 2 (i)Which of the following compound is more than 50% ionic ?

Correct Answers for Comprehension Sub-Questions

Text Solution

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The correct answer is:

CHECK THE SOLUTION.

(i)

Sol. For the 50% ionic character , Δ X = 2.1

∴ X H = 2.1 ; X F = 4 , Δ X = 1.9 < 2.1

X Li = 1 ; X F = 4 , Δ X = 3 > 2.1

X Na = 0.9 ; X Cl = 3 , Δ X = 2.1

(ii)

Sol. All of the above are correct

(iii)

Sol. X – O – H

= 2.5

= 1.4

There fore in the aqueous solution X – O bond is more polar than O – H bond.

∴ X O – H → X + + OH – ; hence X – OH is alkaline.

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