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A chloro compound “A”,
i) Forms aldehydes on ozonolysis followed by the hydrolysis.
ii) When vaporized completely 1.53 g of A, gives 448 ml of vapour at STP.
The number of carbon atoms in a molecule of compounds A is______

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answer is 3.

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Detailed Solution

$\underset{(Cholorocompound)}{A} \overset{O_{3} / H_{2} O}{\to} Aldehyde \overset{on. vap}{\to} \underset{(1.53g)}{A} \to 448 mL at STP$

As A undergoes ozonolysis so A is unsaturated Let A is $C_{n} H_{2 n - 1} C l$

$\underset{1.53 g}{A} \to \underset{448 mL at STP}{v a p o u r}$

$\frac{1.53}{448} \times 22400 \leftarrow 22400 mL = 76.5g$

n = 3

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