Redox and electrochemistry — Question 17

QUESTION 17

Identify the redox reaction.

$\text{(A) CaCO}_{3}(s) \rightarrow CaO(s)+\mathrm{CO}_{2}\mathrm{(g)}$

$\text{(B) CaO(s)}+\mathrm{H}_{2}O(l) \rightarrow Ca(OH)_{2}\mathrm{(s)}$

$\text{(C) Cl}_{2}\mathrm{(g)}+\mathrm{H}_{2}O(l) \rightarrow HCl(aq)+\mathrm{HClO(aq)}$

$\text{(D) NaOH(aq)}+HCl(aq) \rightarrow NaCl(aq)+\mathrm{H}_{2}\mathrm{O(l)}$