JEE Main 2024ChemistrySome Basic Concepts of ChemistryHardNumerical

JEE Main 2024 — Some Basic Concepts of Chemistry Question with Solution

JEE Main 2024 (27 Jan Shift 2)

Question

9.3 g of aniline is subjected to reaction with excess of acetic anhydride to prepare acetanilide. The mass of acetanilide produced if the reaction is 100% completed is _____×10-1 g.

(Given molar mass in g mol-1 N=14,O=16,C=12,H=1)

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Show full solutionCorrect answer: 135
Correct answer
135

Step-by-step explanation

Given, Aniline required. is 9.3 gms

Molar mass of aniline= 93 g mol-1

Molar mass of Acetanilide = 135 g mol-1

The reaction is given as,

Number of moles=Mass / Molar mass

nAcetanilide =nAniline 

⇒m135=9.393

⇒m=13.5 g

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About this question

This is a previous-year question from JEE Main 2024, covering the Some Basic Concepts of Chemistry chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.