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Saturday, 31 October

JEE Main 2023 · ChemistryMultiple choiceTwo statementsMediumConceptual

JEE Main 10 April 2023, Shift 1, Chemistry Q79

Question 79 of 90 in this shift, Chemistry question 19 of 30, Section A.

Given below are two statements: Statement I : Aqueous solution of K2Cr2O7\mathrm{K_2Cr_2O_7} is preferred as a primary standard in volumetric analysis over Na2Cr2O7\mathrm{Na_2Cr_2O_7} aqueous solution. Statement II : K2Cr2O7\mathrm{K_2Cr_2O_7} has a higher solubility in water than Na2Cr2O7\mathrm{Na_2Cr_2O_7}. In the light of the above statements, choose the correct answer from the options given below :
  1. (1)Both Statement I and Statement II are true
  2. (2)Both Statement I and Statement II are false
  3. (3)Statement I is true but Statement II is falseOfficial answer
  4. (4)Statement I is false but Statement II is true

Official answer

Option 3

NTA final key.

Chapter
The d- and f-Block Elements
Topic
d-Block Elements
Idea tested
Preparation Steps of Potassium Dichromate

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Asked 3× 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.