Question

Given below are two reaction of water with sodium and carbon dioxide, what is the nature of water in these reaction?
(i)$2Na+2H_{2}O\to 2NaOH+H_2$
(ii)$6C{O}_2+12H_{2}O\to C_6{H}_1{2}_6+6H_{2}O+6O_2$

• A. In (ii) water acts as an oxidising agent and in (i) it acts as a reducing agent
• B. In (i) water acts as an oxidising agent and in (ii) it acts as a reducing agent
• C. In both (i) and (ii) hydrogen acts as a reducing agent
• D. In both (i) and (ii) hydrogen acts as an oxidizing agent

Answer 1

The correct option is B In (i) water acts as an oxidising agent and in (ii) it acts as a reducing agent

With sodium metal water acts as an oxidizing agent gets reduced to $H_2$ and with $C{O}_2$ water acts as a reducing agent and is oxidized to oxygen