JEE Main 2019ChemistryD And F Block ElementsInner Transition Elements Lanthanoids And ActinoidsmediumMCQ

JEE Main 2019D And F Block Elements Question with Solution

From: JEE Main 2019 (Online) 9th April Evening Slot

Question

The maximum number of possible oxidation states of actinoides are shown by :

Choose an option

Show full solutionCorrect option: C
Correct answer
Cneptunium (Np) and plutonium (Pu)

Step-by-step explanation

Actinoid 'Th' shows oxidation state = +4

Actinoid 'Ac' shows oxidation state = +3

Actinoid 'Pu' shows oxidation states = +3, +4, +5, +6, +7

Actinoid 'Np' shows oxidation states = +3, +4, +5, +6, +7

Actinoid 'Bk' shows oxidation states = +3, +4

Actinoid 'Cm' shows oxidation states = +3, +4

Actinoid 'Lr' shows oxidation states = +3

Maximum oxidation state is shown by Np and Pu.

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About this question

This is a previous-year question from JEE Main 2019, covering the D And F Block Elements chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.