Chemistry · d and f Block Elements

JEE Main 2024 — 31 January, Shift 2 — Question 70

Choose the correct statements from the following

A. Mn2O7\mathrm{Mn}_{2} \mathrm{O}_{7} is an oil at room temperature

B. V2O4\mathrm{V}_{2} \mathrm{O}_{4} reacts with acid to give VO22+\mathrm{VO}_{2}^{2+}

C. CrO is a basic oxide

D. V2O5\mathrm{V}_{2} \mathrm{O}_{5} does not react with acid

Choose the correct answer from the options given below :

  1. Option A:

    A, B and D only

  2. Option B:

    A and C only

    Correct
  3. Option C:

    A, B and C only

  4. Option D:

    B and C only

Answer: B

Step-by-step solution

(A) Mn2O7\mathrm{Mn}_{2} \mathrm{O}_{7} is green oil at room temperature.

(B) V2O4\mathrm{V}_{2} \mathrm{O}_{4} dissolve in acids to give VO2+\mathrm{VO}^{2+} salts.

(C) CrO is basic oxide

(D) V2O5\mathrm{V}_{2} \mathrm{O}_{5} is amphoteric it reacts with acid as well as base.

Answer key and solution verified before publishing.

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Exam
JEE Main 2024
Subject
Chemistry
Chapter
d and f Block Elements
Topic
Properties of compounds of 3d Series elements + Comparison between 3d, 4d, 5d
Choose the correct statements from the following A. Mn 2 O 7 is an… | JEE Main 2024 PYQ with Solution · DhiX AI