Vapour density of a metal chloride is 83. If equivalent weight of the metal is 6, its atomic weight will be…
Vapour density of a metal chloride is 83. If equivalent weight of the metal is 6, its atomic weight will be ____.
12
24
18
60
Solution
Valency of metal,
\(\begin{aligned}
(n) & =\frac{2 \times \text { vapour density }}{\text { Equivalent weight of metal }+35.5} \\
& =\frac{2 \times 83}{6+35.5}=4
\end{aligned}\)
The atomic weight of metal is equal to the product of the equivalent weight of metal and valency.
Atomic weight of metal \(=n \times\) equivalent weight of metal
\(=4 \times 6=24\)
Hence, the correct option (b).
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