On dropping a small piece of sodium in a test tube containing carbon compound $X$ with molecular formula $C_{2}H_{6}O$,a brisk effervescence is observed and a gas $Y$ is produced. On bringing a burning splinter at the mouth of the test tube,the gas evolved burns with a pop sound. Identify $X$ and $Y$. Also,write the chemical equation for the reaction. Write the name and structure of the product formed when you heat $X$ with excess concentrated sulphuric acid.
(A) $X$ is Ethanol $(C_{2}H_{5}OH)$ and $Y$ is Hydrogen gas $(H_{2})$.
The chemical equation for the reaction is:
$2C_{2}H_{5}OH + 2Na \longrightarrow 2C_{2}H_{5}ONa + H_{2} \uparrow$
When $X$ (ethanol) is heated with excess concentrated sulphuric acid $(H_{2}SO_{4})$ at $443 \ K$,it undergoes dehydration to form Ethene $(C_{2}H_{4})$.
The name of the product is Ethene.
The structure of Ethene is $CH_{2}=CH_{2}$.
The chemical equation for the reaction is:
$2C_{2}H_{5}OH + 2Na \longrightarrow 2C_{2}H_{5}ONa + H_{2} \uparrow$
When $X$ (ethanol) is heated with excess concentrated sulphuric acid $(H_{2}SO_{4})$ at $443 \ K$,it undergoes dehydration to form Ethene $(C_{2}H_{4})$.
The name of the product is Ethene.
The structure of Ethene is $CH_{2}=CH_{2}$.
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