Batteries

2 questions on Batteries from the Electrochemistry chapter: 0 NEET level, 2 JEE Main, 0 JEE Advanced. Each one opens with its answer and solution.

• During discharge of a lead storage battery, 0.5 mol of electrons flows through the external circuit. The mass of H2SO4 consumed (in g) is. (Molar mass 98 g mol^... JEE Main level
• The mercury button cell (Zn(Hg) | ZnO, KOH | HgO | Hg) gives a nearly constant voltage during its life because JEE Main level