Question

0.24 g of a volatile substance upon vaporization, gives 45 ml of vapour atSTP. The vapour density of the substance is

• A. 5.993
• B. 59.73
• C. 95.39
• D. 95.93

Answer 1

The correct option is B

59.73

$45ml$ at STP $\to$ $0.24g$

$11,200ml$ at STP $\to$ ?

= $\left(\frac{11200\times 0.24}{45}\right)$ = $59.73$