JEE Main 3 September 2020, Shift 1, Chemistry Q49

Question 49 of 75 in this shift, Chemistry question 24 of 25.

The volume strength of 8.9 M

\mathrm{H_2O_2}

solution calculated at 273 K and 1 atm is __________. (R

=0.0821

L atm

\mathrm{K^{-1}\ mol^{-1}}

) (rounded off to the nearest integer)

Official answer

100.00

NTA final key (Sep 2020).

Chapter: Hydrogen
Topic: Hydrogen and Hydrides
Idea tested: Volume Strength of H2O2

Same idea in other shifts

Asked 2× in all

3 Sep 2020, Shift 2 · Q33The strengths of 5.6 volume hydrogen peroxide (of density 1 g/mL) in terms of mass percentage and molarity (M), respectively, are : (Take…MediumSingle correct

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.