Chemistry questions
29404 published questions with worked solutions.
- When lead storage battery discharges
- During discharge in the case of lead storage batteries density of sulphuric acid
- A voltaic cell can be changed into an electrolytic cell by
- Lead accumulator cell can be maintained in good working conditions when
- During charging of a lead storage battery, the following reaction occurs at the cathode
- The electrode reactions for charging of a lead battery are PbSO_4 + 2e^- SO_4^ 2- + Pb PbSO_4 + 2H_2O PbO_2 + SO_4^ 2- + 4H^+ +...
- The hydrogen/oxygen fuel cell keeps on working so long as
- Electrical cell that converts energy from the combustion of fuels directly into electrical energy is called
- In H_2 -O_2 fuel cell the electrodes are mad of
- Some statements are given below : 1. Rust is hydrated ferric oxide 2. Saline water slows down rusting 3. Pure metals undergo...
- The factors which affect corrosion is / are
- Rusting of iron is not only on the surface but it eats up iron completely because
- Which one of the following is the result of corrosion?
- Galvanization of iron is its coating with
- When rusting starts
- In corrosion of Fe, anode is
- Standard hydrogen electrode is [MHT-CET 2007]
- In voltaic cell, oxidation occurs on which electrode? [MHT-CET 2003]
- One gram atom of which of the following compound will require maximum amount of electricity for its decomposition?
- Specific gravity of sulphuric acid in lead accumulator is