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Saturday, 31 October

JEE Main 2021 · ChemistryMultiple choiceTwo statementsMediumConceptual

JEE Main 25 February 2021, Shift 1, Chemistry Q38

Question 38 of 90 in this shift, Chemistry question 8 of 30, Section A.

Given below are two statements : Statement I : CeO2\mathrm{CeO_2} can be used for oxidation of aldehydes and ketones. Statement II : Aqueous solution of EuSO4\mathrm{EuSO_4} is a strong reducing agent. 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 trueOfficial answer
  2. (2)Both Statement I and Statement II are false
  3. (3)Statement I is true but Statement II is false
  4. (4)Statement I is false but Statement II is true

Official answer

Option 1

NTA final key.

Chapter
The d- and f-Block Elements
Topic
f-Block Elements
Idea tested
Cerium(IV) as an Oxidizing Agent

Same idea in other shifts

Asked 4× in all
  1. 4 Apr 2026, Shift 1 · Q60The correct statements among the following are, A. Mo(VI) and W(VI) are less stable than Cr(VI). B. Ce4+\mathrm{Ce^{4+}} and…HardOther
  2. 25 Jun 2022, Shift 1 · Q68Cerium (IV) has a noble gas configuration. Which of the following is **correct** statement about it ?EasySingle correct
  3. 3 Aug 2021, Shift 2 · Q39Which one of the following statements is correct?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.