Question

A chemist wants to produce ${Cl}_2\left(g\right)$ from molten $NaCl$. How many grams could be produced if he uses a steady current of 2 ampere for 2.5 minutes :-

• A. $3.55g$
• B. $1.775g$
• C. $0.110g$
• D. $0.1775g$

Answer 1

Answer: (C)

$0.110g$

As given,
${2Cl}^{-}⟶{Cl}_2+{2e}^{-}$
$W=ZIt=\frac{71}{2\times 96500}\times 2\times 2.5\times 60=0.110g$