During discharging of lead storage battery, the density of $38 \% \mathrm{H}_2 \mathrm{SO}_4(\mathrm{w} / \mathrm{w})$ fell from $1.274 \mathrm{~g} / \mathrm{mL}$ to $1.2 \mathrm{~g} / \mathrm{mL}$ of $19.6 \%(\mathrm{w} / \mathrm{w}) \mathrm{H}_2 \mathrm{SO}_4$. What is the number of faradays that have been exchanged during the discharging process? (vol. of $\mathrm{H}_2 \mathrm{SO}_4$ in lead storage battery $=2.36 \mathrm{~L}$ )

NEET UG CHEMISTRY MCQ: ELECTRO CHEMISTRY

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Application +4 | -1

During discharging of lead storage battery, the density of

38 \% \mathrm{H}_2 \mathrm{SO}_4(\mathrm{w} / \mathrm{w})

fell from

1.274 \mathrm{~g} / \mathrm{mL}

1.2 \mathrm{~g} / \mathrm{mL}

19.6 \%(\mathrm{w} / \mathrm{w}) \mathrm{H}_2 \mathrm{SO}_4

. What is the number of faradays that have been exchanged during the discharging process? (vol. of

\mathrm{H}_2 \mathrm{SO}_4

in lead storage battery

=2.36 \mathrm{~L}

)

View answer and explanation

Correct option: A

Option A (6) is correct because it involves calculating the change in the amount of H2SO4 and relating it to the number of Faradays exchanged during the discharging process.

NEET UG CHEMISTRY MCQ: ELECTRO CHEMISTRY

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