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QJEEM24Chae3d: JEE Main 2024 Chemistry - Class 12 JEEM24Chae3d Solution: A compound with molar mass undergoes acetylation to give…

A compound (x)(x) with molar mass 108 g mol−1108 \mathrm{~g} \mathrm{~mol}^{-1} undergoes acetylation to give product with molar mass 192 g mol−1192 \mathrm{~g} \mathrm{~mol}^{-1} . The number of amino groups in the compound (x)(x) is ___________.

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JEE Main 2024 (Online) 31st January Evening Shift Chemistry - Compounds Containing Nitrogen Question 37 English Explanation

Gain in molecular weight after acylation with one −NH2-\mathrm{NH}_2 group is 42.

Total increase in molecular weight =84=84

∴\therefore Number of amino group in x=8442=2x=\frac{84}{42}=2

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