JEE Main 2023Chemistrys Block ElementsMediumMCQ

JEE Main 2023s Block Elements Question with Solution

JEE Main 2023 (30 Jan Shift 1)

Question

Lithium aluminium hydride can be prepared from the reaction of

Choose an option

Show full solutionCorrect option: B
Correct answer
BLiH and Al2Cl6

Step-by-step explanation

Lithium aluminium hydride can be prepared by the reaction of dimer of aluminium trichloride and lithium hydride by the below reaction with a high yield:
8LiH+Al2Cl62LiAlH4+6LiCl
Lithium aluminium hydride is extensively used for reduction of organic compounds.

Practice this on the real CBT interface

Solve this JEE Main question (and the rest of the s Block Elements chapter) on PrepSharp's TCS iON-style CBT player — with timer, bookmarks and session analytics.

Solve interactively →

About this question

This is a previous-year question from JEE Main 2023, covering the s 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.