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Potassium Dichromate

The colourles...

Question

The colourless, odourless gas which turns lime water milky but has no effect on potassium permanganate solution is :

A

S O_{2}

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B

C O_{2}

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C

N O_{2}

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D

None of the above

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Solution

The correct option is A $C O_{2}$
$C O_{2}$ is a colourless, odourless gas which turns lime water milky but has no effect on potassium permanganate solution.

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