JEE Main 2019 — Some Basic Concepts Of Chemistry Question with Solution
From: JEE Main 2019 (Online) 8th April Evening Slot
Question
The percentage composition of carbon by mole
in methane is :
Choose an option
Show full solutionCorrect option: B
Correct answer
B20%
Step-by-step explanation
In CH4, there are 5 atoms (1C + 4H).
% composition of C by mole in CH4
= 100 = 20 %
% composition of C by mole in CH4
= 100 = 20 %
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This is a previous-year question from JEE Main 2019, 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.