MCQ
Non-combustible hydride is
  • $N{H_3}$
  • B
    $P{H_3}$
  • C
    $As{H_3}$
  • D
    $Sb{H_3}$

Answer

Correct option: A.
$N{H_3}$
a
The combustion of ammonia in is difficult in the absence of a catalyst like platinum because the temperature of the flame is usually lower than the ignition temperature of the ammonia-air mixture. The flammable range of ammonia in air is less than $16-25\, \%$.

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