JEE Main 2018Chemistryp Block Elements (Group 15, 16, 17 & 18)MediumMCQ

JEE Main 2018 — p Block Elements (Group 15, 16, 17 & 18) Question with Solution

JEE Main 2018 (08 Apr)

Question

The compound that does not produce nitrogen gas by thermal decomposition is:

Choose an option

Show full solutionCorrect option: A
Correct answer
ANH42SO4

Step-by-step explanation

(i)   NH42Cr2O7 →Δ Cr2O3+N2+4H2O

(ii)   NH4NO2 →Δ N2+2H2O

(iii)   NH42SO4 →Δ 2NH3+H2SO4

(iv)   BaN32 →Δ Ba+3N2

In reaction (iii) NH3 is evolved whereas in reaction 1, 2 and 4 N2 is evolved.

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About this question

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