Question

Zinc reacts with CuSO4 according to the equation

$Zn+CuS{O}_{4\to }ZNS{O}_4+Cu$. If excess of zinc is

added to 100.0 ml of 0.05M CuSO${}_4$, the amount

of copper formed in moles will be :

• A. 0.05
• B. 0.5
• C. 0.005
• D. 50

Answer 1

The correct option is C 0.005

$\text{moles of}CuS{o}_4$=$0.05\times \frac{100}{1000}$
$=0.005$
$\therefore$ 1 mole of $CuS{o}_4$ give
$\therefore$ 0.005 mole $CuS{o}_4$ give 0.005 mole Cu