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CHEMISTRY · Subjective · A Level · Chemistry · Group 7 elements (halogens) · Group 7 elements (halogens)

Problem

Column IColumn II
(a) Br2\mathrm{Br_2}(p) Liquid at room temperature
(b) O2\mathrm{O_2}(q) Used in estimation of CO
(c) ClO2\mathrm{ClO_2}(r) Paramagnetic
(d) I2O5\mathrm{I_2O_5}(s) Powerful bleaching agent

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