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Question

What products are formed during, the electrolysis of a concentrated aqueous solution of $$NaCl$$?
(I) $$Cl_{2}$$  
(II) $$NaOH$$(aq)  
(III) $$H_{2}$$(g)


A
I only
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B
I and II only
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C
I and III only
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D
I, II and III
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Solution

The correct option is C $$I$$, $$II$$ and $$III$$
The electrolysis of a concentrated solution of NaCl gives $$(I)\ Cl_2,\  (II)\   NaOH(aq)$$ and $$(III) H_2(g)$$

$$2NaCl(aq)+2H_2O \rightarrow 2NaOH(aq) + H_2(g) + Cl_2(g)$$

Hence, the correct option is $$D$$

Chemistry

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