Write the equation for:
Preparation of ethanol by hydration of $C_{2} H_{4}$

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Solution

Hydration reactions are addition reactions where water reacts with an unsaturated compound to produce alcohol.
For the reaction given in the question, Ethene $(C_{2} H_{4})$ reacts with water vapor in presence of catalysts such as Sulphuric acid $(H_{2} S O_{4})$ or Phosphorous pentaoxide $(P_{2} O_{5})$ at a high temperature and pressure to produce Ethanol $(C_{2} H_{5} O H)$ . The chemical reaction of the process is as illustrated below:
$\underset{(E t h e n e)}{C_{2} H_{4} (g)} + \underset{(W a t e r)}{H_{2} O (g)} \underset{300 ° C}{\overset{catalyst}{⇌}} \underset{(E t h a n o l)}{C_{2} H_{5} O H (l)}$
The reaction is reversible, and the formation of the Ethanol is highly exothermic.

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Write the balanced chemical equation for Preparation of Ethanol from Ethyl chloride.

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{C r}_{2} O_{7}^{2 -} + C_{2} H_{4} O \to C_{2} H_{4} O_{2} + {C r}^{3 +}

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