Published by:
CGP EDU Academic Team
Published on: August 14, 2026
Match the Column-I with Column-II
Column-I (Oxoacid) | Column-II (Oxidation state of central clement) | ||
(A) | Phosphoric acid | (I) | +6 |
(B) | Marshall's acid | (II) | +5 |
(C) | Perchloric acid | (III) | +4 |
(D) | Sulphurous acid | (IV) | +7 |
Text Solution
Verified by ExpertsThe correct answer is:
A
Phosphoric acid 
. It contains P in +5 oxidation state.
Marshall's acid 
. It contains sulphur in its +6 oxidation state and a peroxide group.
Perchloric acid- 
. It contains Cl in +7 oxidation state.
Sulphurous acid- 
. It contains S in +4 oxidation state.
Thus, A-2, B-1, C-4, D-3
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