Question

How many moles of platinum will be deposited on the cathode when 0.60 F of electricity is passed through a 1.0 M solution of $P{t}^{4+}$?

• A. 0.60 mole
• B. 0.15 mole
• C. 0.30 mole
• D. 0.45 mole
• E. 1.0 mole

Answer 1

The correct option is B 0.15 mole

$P{t}^{4+}+4e^{-}\to Pt$

When $4F$ electricity $=1$ mole $Pt$

Let when $0.60$ F electricity passed through solution then the number of moles of $Pt=x$

So, number of moles $\left(x\right)=\frac{0.6F}{4F}=0.15$ moles.

Hence, option B is correct.