Question

$ 25\,g $ of $ MCl_{4} $ contains $ 0.5$ mole chlorine then its molecular weight is

• A. $100\, g\, mol ^{-1}$
• B. $200 \, g\, mol ^{-1}$
• C. $150 \, g\, mol ^{-1}$
• D. $400\, g\, mol ^{-1}$

Answer 1

Answer: (B)

$0.5$ mole chlorine is present in $25 \,g$ of $M C l_{4}$
$1$ mole chlorine will be present in $50\, g$ of $50 \,g$
But $50\, g$ contain $4$ moles of chlorine then, molecular weight of
$M C l_{4}=4 \times 50$
$=200 \,g\,mol ^{-1}$