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JEE Main 202324 JanuaryEvening Shift
Exam
JEE Main
Year
2023
Date
24 January
Shift
Evening Shift
Subject
Chemistry
Chapter
d and f Block Elements

JEE Main 2023 · 24 January · Evening Shift · Chemistry · d and f Block Elements

Which one amongst the following are good oxidising agents? (a) Sm ^...

Which one amongst the following are good oxidising agents?

(a) Sm2+{Sm}^{2 +}

(b) Ce2+{Ce}^{2 +}

(c) Ce4+{Ce}^{4 +}

(d) Tb4+{Tb}^{4 +}

Choose the most appropriate answer from the options given below :

Options

  1. AC only
  2. BD only
  3. CA and B only
  4. DC and D only

Correct answer

D. C and D only

Step-by-step solution

The common oxidation state of lanthanide is +3+ 3. The lanthanide ions having +2+ 2 oxidation state undergo oxidation readily, hence they act as reducing agents. The lanthanide ions having +4+ 4oxidation state undergo reduction readily, hence they act as oxidising agents.

Hence, Ce+4andTb+4{Ce}^{+ 4}and{Tb}^{+ 4} act as oxidising agent

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