JEE Main 2020 · ChemistryNumerical answerNumerical valueEasyCalculation

JEE Main 9 January 2020, Shift 1, Chemistry Q46

Question 46 of 75 in this shift, Chemistry question 21 of 25, Section B.

The molarity of

\mathrm{HNO_3}

in a sample which has density 1.4 g/mL and mass percentage of 63% is ________. (Molecular Weight of

\mathrm{HNO_3} = 63

)

Official answer

14.00 to 14.00

NTA final key (Jan 2020). Any value in the range scored.

Chapter: Some Basic Concepts of Chemistry
Topic: Mole Concept
Idea tested: Molarity Calculation

Same idea in other shifts

Asked 16× 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.