JEE Main 2020 · ChemistryMultiple choiceSingle correctEasyRecall

JEE Main 5 September 2020, Shift 1, Chemistry Q29

Question 29 of 75 in this shift, Chemistry question 4 of 25.

The most appropriate reagent for conversion of

\mathrm{C_2H_5CN}

into

\mathrm{CH_3CH_2CH_2NH_2}

is :

(1) $\mathrm{LiAlH_4}$ Official answer
(2) $\mathrm{NaBH_4}$
(3) $\mathrm{Na(CN)BH_3}$
(4) $\mathrm{CaH_2}$

Official answer

Option 1

NTA final key (Sep 2020).

Chapter: Amines
Topic: Amines
Idea tested: Reduction of Nitriles vs Isocyanides

Same idea in other shifts

Asked 3× in all

24 Jun 2022, Shift 1 · Q76[figure: 4-methoxybenzyl bromide, i.e. 4- $\mathrm{CH_3O}$ -C6H4- $\mathrm{CH_2Br}$ ] (i) NaCN (ii) $\mathrm{OH^-}$ (iii) Cyclohexanone (iv)…HardSingle correctHas a figure
24 Jun 2022, Shift 2 · Q77The conversion of propan-1-ol to n-butylamine involves the sequential addition of reagents. The correct sequential order of reagents isMediumSingle correct

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.