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

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

JEE Main 2021 (31 Aug Shift 1)

Question

Consider the sulphides HgS, PbS, CuS, Sb2 S3, As2S3 and CdS. Number of these sulphides soluble in 50% HNO3 is ___________ .

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Show full solutionCorrect answer: 4
Correct answer
4

Step-by-step explanation

CdS, PbS, As2S3 and CuS, are soluble in 50% HNO3 while HgS and Sb2S3 are insoluble in 50% HNO3 but HgS soluble in aqua regia.

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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.