Match the following Column-IColumn-II(i) Primary standard base[A] Na2C2O4(ii) Equiv. wt = [B] Na2B4O7(iii) Primary standard reducing agent[C] Na2CO3(iv) Capable of reducing hardness of water due to the presence of Ca2+[D] As2O3

Match the following Column-IColumn-II(i) Primary standard b…

Chemistry Hydrogen and Its Compounds ( Not in Syllabus ) Hydrogen Matrix Match Questions

Published on: August 14, 2026

Match the following

Column-I	Column-II
(i) Primary standard base	[A] Na2C2O4
(ii) Equiv. wt =	[B] Na2B4O7
(iii) Primary standard reducing agent	[C] Na2CO3
(iv) Capable of reducing hardness of water due to the presence of Ca2+	[D] As2O3

Correct Matrix Matching

Verified by Experts

The correct answer is:

(i) [B]; (ii) [A]; (iii) [A]; (iv) [A]

Ans.

(i) [B][C]

(ii) [A][B][C][D]

(iii) [A][D]

(iv) [A][B][C]

Sol.

(i) Na 2 B 4 O 7, Na 2 CO 3

(ii) Na 2 C 2 O 4, Na 2 B 4 O 7, Na 2 CO 3, As 2 O 3

(iii) Na 2 C 2 O 4, As 2 O 3

(iv) Na 2 C 2 O 4, Na 2 B 4 O 7, Na 2 CO 3,

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