JEE Main 2021Chemistryp Block Elements (Group 13 & 14)EasyMCQ

JEE Main 2021 — p Block Elements (Group 13 & 14) Question with Solution

JEE Main 2021 (22 Jul Shift 1)

Question

Given below are the statements about diborane
(a) Diborane is prepared by the oxidation of NaBH4 with I2
(b) Each boron atom is in sp2 hybridized state
(c) Diborane has one bridged 3 centre-2-electron bond
(d) Diborane is a planar molecule

The option with correct statement(s) is 

Choose an option

Show full solutionCorrect option: B
Correct answer
B(a) only

Step-by-step explanation

Diborane is prepared by the reaction of NaBH4 with I2. 2NaBH4+I2→B2H6+2NaI+H2
In diborane, B is sp3 hybridized. It is non-planar molecule and it has two 3c-2e- bonds.

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About this question

This is a previous-year question from JEE Main 2021, covering the p Block Elements (Group 13 & 14) 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.