For lead storage battery pick the correct statements
A. During charging of battery, $\mathrm{PbSO}_{4}$ on anode is converted into $\mathrm{PbO}_{2}$
B. During charging of battery, $\mathrm{PbSO}_{4}$ on cathode is converted into $\mathrm{PbO}_{2}$
C. Lead storage battery consists of grid of lead packed with $\mathrm{PbO}_{2}$ as anode
D. Lead storage battery has $\sim 38 \%$ solution of sulphuric acid as an electrolyte
Choose the correct answer from the options given below:
Solution
<p>Let's review each statement:</p>
<p>A. During charging of battery, PbSO₄ on anode is converted into PbO₂.</p>
<ul>
<li>This statement is incorrect. During charging, PbSO₄ on the anode (lead plate) is converted to Pb, not PbO₂.</li>
</ul>
<p>B. During charging of battery, PbSO₄ on cathode is converted into PbO₂.</p>
<ul>
<li>This statement is correct. During charging, PbSO₄ on the cathode (lead dioxide plate) is converted back to PbO₂.</li>
</ul>
<p>C. Lead storage battery consists of grid of lead packed with PbO₂ as anode.</p>
<ul>
<li>This statement is incorrect. The anode in a lead-acid battery is made of lead (Pb), not lead dioxide (PbO₂). The cathode is made of lead dioxide (PbO₂).</li>
</ul>
<p>D. Lead storage battery has ∼38% solution of sulphuric acid as an electrolyte.</p>
<ul>
<li>This statement is correct. The electrolyte in a lead-acid battery is a solution of about 35-38% sulfuric acid (H₂SO₄) in water.</li>
</ul>
<p>Therefore, the correct answer is:</p>
<p>B, D only.</p>
About this question
Subject: Chemistry · Chapter: Electrochemistry · Topic: Electrochemical Cells
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