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Saturday, 31 October

JEE Main 2021 · ChemistryNumerical answerNumerical valueMediumConceptual

JEE Main 18 March 2021, Shift 2, Chemistry Q60

Question 60 of 90 in this shift, Chemistry question 30 of 30, Section B.

In Tollen’s test for aldehyde, the overall number of electron(s) transferred to the Tollen’s reagent formula [Ag(NH3)2]+\mathrm{[Ag(NH_3)_2]^+} per aldehyde group to form silver mirror is __________. (Round off to the Nearest Integer).

Official answer

2

NTA final key.

Chapter
Aldehydes, Ketones and Carboxylic Acids
Topic
No close match in our taxonomy
Idea tested
No close match in our taxonomy

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.