Question

Compound $Pd{Cl}_4.6H_{2}O$ is a hydrated complex; 1 m aqueous solution of it has freezing point 269.28 K. Assuming 100% ionization of complex, calculate the number of ions furnished by the complex in the solution.

• A. 1
• B. 2
• C. 4
• D. 0

Answer 1

Answer: (B)

2

As we know,
$\Delta T=i{K}_{f}m$

$(273-269.28)=i\times 1.86\times 1$

$3.72=1\times 1.86$

$i=2$

$\alpha =\frac{i-1}{n-1};(\alpha =100$%$=1)$

$1=\frac{2-1}{n-1}\Rightarrow n=2$

Hence, the correct option is $B$