JEE CHEMISTRY MCQ: P-BLOCK ELEMENTS

1 Easy

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Understanding +4 | -1

When a brown compound of

\mathrm{Mn}(\mathrm{A})

is treated with

\mathrm{HC}{l}

, it gives a gas (B). The gas

(\mathrm{B})

taken in excess reacts with

\mathrm{NH}_3

to give an explosive compound

(\mathrm{C})

. The compound

\mathrm{A}, \mathrm{B}

and

\mathrm{C}

are

View answer and explanation

Correct option: A

\mathrm{A}=\mathrm{MnO}_2, \mathrm{~B}=\mathrm{C}{l}_2, \mathrm{C}=\mathrm{NC}{l}_3

Option D (All of these) is correct because all the given expressions are valid representations of Kf, the cryoscopic constant.

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