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Q.

The empirical formula of a compound is HO . Vapor density is 17. Its molecular formula is

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a

$H_{2} O_{2}$

b

$H_{2} O$

c

$H_{2} O_{3}$

d

$H_{3} O_{3}$

answer is B.

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Detailed Solution

Molecular mass =2 $\times$ vapor density

$= 2 \times 17 = 34$

$n = \frac{34}{17} = 2$

Molecular formula $= {(HO)}_{2}$ $= H_{2} O_{2}$

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The empirical formula of a compound is HO . Vapor density is 17. Its molecular formula is