JEE MAIN - Chemistry (2024 - 31st January Evening Shift - No. 26)
A compound $$(x)$$ with molar mass $$108 \mathrm{~g} \mathrm{~mol}^{-1}$$ undergoes acetylation to give product with molar mass $$192 \mathrm{~g} \mathrm{~mol}^{-1}$$. The number of amino groups in the compound $$(x)$$ is ___________.
Answer
2
Explanation
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Gain in molecular weight after acylation with one $$-\mathrm{NH}_2$$ group is 42.
Total increase in molecular weight $$=84$$
$$\therefore$$ Number of amino group in $$x=\frac{84}{42}=2$$
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