Chemistry · 2020
JEE Main · 8 January 2020, Shift 2 · Q35
A metal (A) on heating in nitrogen gas gives compound B. B on treatment with H_2 O gives a colourless gas which when passed through CuSO_4 solution…
A metal (A) on heating in nitrogen gas gives compound B . B on treatment with $\displaystyle \mathrm{H}_2 \mathrm{O}$ gives a colourless gas which when passed through $\displaystyle \mathrm{CuSO}_4$ solution gives a dark blue-violet coloured solution. A and B respectively, are :
Official answer
(2)
Mg and $\displaystyle \mathrm{Mg}_3 \mathrm{~N}_2$
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JEE Main 2020 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.