JEE Main 2022 · ChemistryNumerical answerNumerical valueMediumCalculation

JEE Main 29 July 2022, Shift 1, Chemistry Q89

Question 89 of 90 in this shift, Chemistry question 29 of 30, Section B.

In bromination of Propyne, with Bromine 1, 1, 2, 2-tetrabromopropane is obtained in 27% yield. The amount of 1, 1, 2, 2-tetrabromopropane obtained from 1 g of Bromine in this reaction is __________

\times10^{-1}

g. (Nearest integer) (Molar Mass : Bromine = 80 g/mol )

Official answer

NTA final key.

Chapter: Hydrocarbons
Topic: Stoichiometry
Idea tested: Theoretical and Percent Yield

Same idea in other shifts

Asked 7× in all

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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.