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JEE Main 22 July 2021, Shift 2, Chemistry Q60

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

Methylation of 10 g of benzene gave 9.2 g of toluene. Calculate the percentage yield of toluene ________. (Nearest integer)

Official answer

NTA final key.

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

Same idea in other shifts

Asked 7× in all

27 Jul 2022, Shift 2 · Q90In the above reaction, 5 g of toluene is converted into benzaldehyde with 92% yield. The amount of benzaldehyde produced is __________…EasyNumerical valueHas a figure
29 Jul 2022, Shift 1 · Q89In bromination of Propyne, with Bromine 1, 1, 2, 2-tetrabromopropane is obtained in 27% yield. The amount of 1, 1, 2, 2-tetrabromopropane…MediumNumerical value
24 Feb 2021, Shift 2 · Q601.86 g of aniline completely reacts to form acetanilide. 10% of the product is lost during purification. Amount of acetanilide obtained…EasyNumerical value
17 Mar 2021, Shift 1 · Q60[reaction drawn: see figure_note] In the above reaction, 3.9 g of benzene on nitration gives 4.92 g of nitrobenzene. The percentage yield…EasyNumerical valueHas a figure
17 Mar 2021, Shift 2 · Q60[reaction scheme] Consider the above reaction. The percentage yield of amide product is __________. (Round off to the Nearest Integer).…MediumNumerical valueHas a figure
18 Mar 2021, Shift 2 · Q59[figure: reaction scheme] Consider the above reaction where 6.1 g of Benzoic acid is used to get 7.8 g of m-bromo benzoic acid. The…EasyNumerical valueHas a figure

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.