Chemistry · d and f Block Elements

JEE Main 2024 — 6 April, Shift 1 — Question 71

The number of element from the following that do not belong to lanthanoids is : $\mathrm{Eu}, \mathrm{Cm}, \mathrm{Er}, \mathrm{Tb}, \mathrm{Yb}$ and Lu

Option A:
3
Option B:
4
Option C:
1
Correct
Option D:
5

Answer: C

Step-by-step solution

Cm is Actinide

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Exam: JEE Main 2024
Paper: 6 April, Shift 1
Subject: Chemistry
Chapter: d and f Block Elements
Topic: Inner transition elements (f-Block elements)

The difference in the 'spin-only' magnetic moment values of KMnO 4 and the manganese product formed during titration of KMnO 4 against…
Among CrO, Cr 2 O 3 and CrO 3 , the sum of spin-only magnetic moment values of basic and amphoteric oxides is 10^-2 BM (nearest integer).…

Answer: C

Step-by-step solution

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