mathrm{X} mathrm{g} of ethylamine is subjected to reaction with mathrm{NaNO}_2 / mathrm{HCl} followed by water; evolved dinitrogen gas which occupied 2.24 mathrm{~L} volume at STP.

Q: $\mathrm{X} \mathrm{g}$ of ethylamine is subjected to reaction with $\mathrm{NaNO}_2 / \mathrm{HCl}$ followed by water; evolved dinitrogen gas which occupied $2.24 \mathrm{~L}$ volume at $STP.$ $\mathrm{X}$ is . . . . . .$\times 10^{-1} \mathrm{~g}$.

c $\underset{\substack{\text { Mol..wt.45g }}}{\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{NH}_2} \xrightarrow{\mathrm{N}_2 \mathrm{NO}_2+\mathrm{HCl}} \xrightarrow{\mathrm{H}_2 \mathrm{O}} \mathrm{CH}_3 \mathrm{CH}_2-\mathrm{OH}+\underset{14 \mathrm{~g}}{\mathrm{~N}_2}$ given: $\mathrm{N}_2$ evolved is $2.24 \mathrm{~L}$ i.e. $0.1 \mathrm{~mole}$. 1.e. $\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{NH}_2$ (ethyl amine) will be $4.5 \mathrm{~g}$ $(=0.1 \mathrm{~mole})$ Hence the answer $=45 \times 10^{-1} \mathrm{~g}$

SECTION - A [CHEMISTY - MCQ]

GSEB - English Medium

$\mathrm{X} \mathrm{g}$ of ethylamine is subjected to reaction with $\mathrm{NaNO}_2 / \mathrm{HCl}$ followed by water; evolved dinitrogen gas which occupied $2.24 \mathrm{~L}$ volume at $STP.$ $\mathrm{X}$ is . . . . . .$\times 10^{-1} \mathrm{~g}$.

A$39$
B$40$
C$45$
D$50$

JEE MAIN 2024, Medium

STD 11 Science
JEE
STD 12 - 9. Amines
Chemistry

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