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p -Block elements - ll — Chemistry STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceChemistryp -Block elements - ll1 Mark
MCQ
Correct statement about phosphine is /are

$(a)$  It has rotten egg like small

$(b)$  In aquous solution and presence of light it yields white phosphorous and hydrogen

$(c)$  It explodes with $Br_2$

$(d)$  In pure form it is non inflammable

  • ✓
    only $c$ and $d$
  • B
    only $b,c$ and $d$
  • C
    only $d$
  • D
    All are right
✓

Answer

Correct option: A.
only $c$ and $d$
a
$\mathrm{PH}_{3} \rightarrow$ rotten fish like small

$\mathrm{PH}_{3}(\mathrm{aq}) \stackrel{\mathrm{Light}}{\longrightarrow} \mathrm{Red}^{\prime} \mathrm{P}^{\prime}+\mathrm{H}_{2}$

$\mathrm{PH}_{3} \frac{\text { oxidising agents }}{\mathrm{HNO}_{3} / \mathrm{Cl}_{2} / \mathrm{Br}_{2}}$ explodes

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