Problem

Problem

Column-IColumn-II
(A) Br2\text{Br}_2(P) Liquid at room temperature
(B) O2\text{O}_2(Q) Used in estimation of CO
(C) ClO2\text{ClO}_2(R) Paramagnetic
(D) I2O5\text{I}_2\text{O}_5(S) Powerful bleaching agent

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