JEE Main 2021Chemistryp Block Elements (Group 15, 16, 17 & 18)MediumMCQ

JEE Main 2021 — p Block Elements (Group 15, 16, 17 & 18) Question with Solution

JEE Main 2021 (22 Jul Shift 1)

Question

Which one of the following group-15 hydride is the strongest reducing agent ?

Choose an option

Show full solutionCorrect option: B
Correct answer
BBiH3

Step-by-step explanation

When we go down the group, the size of the atom increase also the distance between the metal hydrogen bond increases in hydrides. So, the strength of the metal hydrogen bond decreases. A reducing agent is one that supplies a hydrogen atom. Among 15th  group hydrides, BiH3 is strongest reducing agent.

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About this question

This is a previous-year question from JEE Main 2021, covering the p Block Elements (Group 15, 16, 17 & 18) 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.