JEE Main 2018Chemistryp Block Elements (Group 13 & 14)EasyMCQ

JEE Main 2018p Block Elements (Group 13 & 14) Question with Solution

JEE Main 2018 (16 Apr Online)

Question

A group 13 element  'X' reacts with chlorine gas to produce a compound XCl3. XCl3 is electron deficient and easily reacts with NH3 to form Cl3XNH3 adduct; however, XCl3 does not dimerize. X is:

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Show full solutionCorrect option: A
Correct answer
AB

Step-by-step explanation

BCl3


 

Boron react with chlorine gas to produce compound BCl3 which is electron deficient. It does not dimerize because of small boron atom. It react with ammonia to form aduct. In it ammonia act as lewis base and BCl3 act as lewis acid.

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About this question

This is a previous-year question from JEE Main 2018, 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.