JEE PYQ: Electrochemistry Question 32
Question 32 - 2019 (09 Jan Shift 1)
The anodic half-cell of lead-acid battery is recharged using electricity of 0.05 Faraday. The amount of PbSO$_4$ electrolyzed in g during the process is: (Molar mass of PbSO$_4$ = 303 g mol$^{-1}$)
(1) 22.8
(2) 15.2
(3) 7.6
(4) 11.4
Show Answer
Answer: (3) 7.6
Solution
PbSO$_4 \rightarrow$ Pb$^{4+}$ + 2e$^-$. 2F for 303 g. 0.05F gives $\frac{0.05}{2} \times 303 = 7.6$ g.
BETA
