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Chemistry · 2026 · 2 marks
CBSE 2026 · Region 5 · Set 1 · Q19
(a) Complete the following equation: (b) How will you convert nitromethane to methyl isocyanide?
(a)
Complete the following equation :
(b)
How will you convert nitromethane to methyl isocyanide ?
Marking-scheme solution
(a)
(b)
$\displaystyle \mathrm{CH_3NO_2} \xrightarrow{\text{Sn /HCl}} \mathrm{CH_3NH_2} \xrightarrow{\mathrm{CHCl_3} + \mathrm{KOH(alc.)}} \mathrm{CH_3NC}$
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CBSE Class 12 Chemistry past-paper question from the 2026 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.