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Concentration Terms - An Introduction (w/w etc)

Ammonia gas o...

Question

Ammonia gas on passing through which one of the following is not significantly absorbed?

C a C l_{2}

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P_{2} O_{5}

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H_{2} S O_{4}

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C a O

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Solution

The correct option is D $C a O$
$C a C l_{2}$ , $P_{2} O_{5}$ and $H_{2} S O_{4}$ can absorb ammonia but $C a O$ cannot absorb ammonia.
$C a O$ absorbs only moisture.
$C a C l_{2} + 8 N H_{3} ⟶ C a C l_{2} .8 N H_{3}$
$P_{2} O_{5} + 6 N H_{3} + 3 H_{2} O ⟶ 2 (N H_{4})_{3} P O_{4}$
$H_{2} S O_{4} + 2 N H_{3} ⟶ (N H_{4})_{2} S O_{4}$

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