A solution X on reaction with Zn gives sodium zincate and hydrogen gas is evolved but does not react with sodium carbonate whereas solution Y reacts with sodium carbonate to give zinc chloride and carbon dioxide is evolved. 1) Identify X and Y 2) Name the type of reaction when X reacts with Y

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Solution

Dear Student

The X which on reacting with Zn gives sodium zincate while do not react with sodium carbonate. So, the reaction will be

$Z n (s) + 2 N a O H (a q) \to N a_{2} Z n O_{2} + H_{2} ↑$

So, X will be NaOH

While Y when reacts with sodium carbonate gives sodium chloride and carbon dioxide. So, the reaction is :

$2 H C l + N a_{2} C O_{3} \to 2 N a C l + C O_{2} + H_{2} O$
So, Y be HCl

(ii) And the reaction of X and Y be the neutralisation reaction which is as follows:

HCl + NaOH -> NaCl + H₂O

Regards

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