Which of the following is a non-combustible h | vedclass

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(A) Among the hydrides of Group $15$ elements,$NH_3$ is considered non-combustible under ordinary conditions. The combustion of $NH_3$ is difficult in

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$NH_3$

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(A) Among the hydrides of Group $15$ elements,$NH_3$ is considered non-combustible under ordinary conditions. The combustion of $NH_3$ is difficult in the absence of a catalyst (like $Pt$) because the flame temperature is lower than the ignition temperature of the $NH_3$-air mixture. Other hydrides like $PH_3$,$AsH_3$,and $SbH_3$ are highly flammable and burn readily in air.

Which of the following is a non-combustible hydride?

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