JEE Main 2019Chemistryp Block Elements (Group 13 & 14)EasyMCQ

JEE Main 2019p Block Elements (Group 13 & 14) Question with Solution

JEE Main 2019 (08 Apr Shift 1)

Question

Diborane B2H6 reacts independently with O2 and H2O to produce, respectively:

Choose an option

Show full solutionCorrect option: D
Correct answer
D B2O3 and H3BO3

Step-by-step explanation

Diborane reacts with oxygen exothermically to form boric oxide (B2O3)
B2H6+3O2B2O3+3H2O
Diborane gets readily hydrolysed to give boric acid
B2H6+3H2O2BOH3+3H2(g)

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About this question

This is a previous-year question from JEE Main 2019, 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.