MHT CET Chemistry Question (2026) — Solution

Step-by-step solution

During the discharge of a lead storage battery, the following reactions take place: At anode: Pb (s) + SO _4^ 2- (aq) PbSO _4(s) + 2e^- At cathode: PbO _2(s) + SO _4^ 2- (aq) + 4 H ^+(aq) + 2e^- PbSO _4(s) + 2 H _2 O (l) Overall reaction: Pb (s) + PbO _2(s) + 2 H _2 SO _4(aq) 2 PbSO _4(s) + 2 H _2 O (l) From the overall cell reaction, it is clear that sulphuric acid ( H _2 SO _4) is consumed during the discharge process. Answer: H _2 SO _4 is consumed