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Given below are two reactions of water with sodium and carbon dioxide. What is the nature of water in these reactions? (i) 2 N a + 2 H 2 O → 2 N a O H + H 2 (ii) 6 C O 2 + 12 H 2 O → C 6 H 12 O 6 + 6 H 2 O + 6 O 2

Options

  1. AIn (ii) water acts as an oxidising agent and in (i) it acts as a reducing agent
  2. BIn (i) water acts an an oxidising agent while in (ii) it acts as a reducing agent
  3. CIn both, (i) and (ii) hydrogen acts as a reducing agent
  4. DIn both, (i) and (ii) hydrogen acts as an oxidising agent

Correct answer

B. In (i) water acts an an oxidising agent while in (ii) it acts as a reducing agent

Step-by-step solution

With sodium metal water acts as an oxidising agent and gets reduced to H 2 , with C O 2 water acts as a reducing agent and is oxidised to oxygen.

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