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Chemistry · 2025 · 1 mark
CBSE 2025 · Region 6 · Set 1 · Q15
Assertion(A): Boiling point of ( CH_3)_3 N is higher than that of CH_3 CH_2 CH_2 NH_2. Reason (R): Hydrogen bonding is more extensive in CH_3 CH_2…
Assertion(A): Boiling point of $\displaystyle \left(\mathrm{CH}_{3}\right)_{3} \mathrm{~N}$ is higher than that of $\displaystyle \mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{NH}_{2}$. Reason $\displaystyle (R)$ : Hydrogen bonding is more extensive in $\displaystyle \mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{NH}_{2}$.
Official answer
(D)
Assertion (A) is false, but Reason (R) is true.
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CBSE Class 12 Chemistry past-paper question from the 2025 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.