JEE Main 2015Chemistryp Block Elements (Group 15, 16, 17 & 18)HardMCQ

JEE Main 2015p Block Elements (Group 15, 16, 17 & 18) Question with Solution

JEE Main 2015 (10 Apr Online)

Question

The cation that will not be precipitated by H2S in the presence of dil HCl is:

Choose an option

Show full solutionCorrect option: A
Correct answer
ACo2+

Step-by-step explanation

Co2+ precipitated by H2S in presence of NH4OH in group IV as CoS (Black ppt.)

Other are precipitated as sulphide in presence of dil HCl in group II.

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About this question

This is a previous-year question from JEE Main 2015, 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.