NEET UG CHEMISTRY MCQ: P-BLOCK ELEMENTS

1 Hard

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Analyzing +4 | -1

A dark brown solid (X) reacts with

N{H_3}

to form a mild explosive which decomposes to give a violet coloured gas. (X) also reacts with

{H_2}

to give an acid (Y).(Y) can also be prepared by heating its salt with

{H_3}P{O_4}

X and Y are

View answer and explanation

Correct option: D

{I_2},HI

Option D is correct because iodine reacts with ammonia to form

NI_3.NH_3

which is explosive and decomposes to give violet iodine vapor, and iodine reacts with hydrogen to form HI.

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