Sulphur dioxide gas turns lead acetate paper black.

True

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False

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Solution

The correct option is B False
Sulphur dioxide reacts with lead acetate paper as follow.
Pb(CH $_{3}$ COO) $_{2}$ + SO $_{2}$ $\to$ Pb(SO $_{2}$ ) $_{2}$ + (CH $_{3}$ COO) $_{2}$
No black colour substance is formed.
Hence this statement is false.
Hydrogen sulphide turns the colour of lead acetate paper black according to the following reaction
$Pb(CH_{3}COO)_{2} + H_{2}S \Rightarrow PbS + 2CH_{3}COOH$
The formation of PbS gives the black colour.

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