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When a lead storage battery is discharged, then

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Important Questions on Electrochemistry

MEDIUM
Chemistry>Physical Chemistry>Electrochemistry>Common Types of Cells
Which among the following equations represents the reduction taking place in lead accumulator at positive electrode, While it is being used as a source of electrical energy?
EASY
Chemistry>Physical Chemistry>Electrochemistry>Common Types of Cells
In a typical fuel cell, the reactants (R) and product (P) are :-
EASY
Chemistry>Physical Chemistry>Electrochemistry>Common Types of Cells
For a fuel cell, which statement is correct?
MEDIUM
Chemistry>Physical Chemistry>Electrochemistry>Common Types of Cells
Write all reactions taking place during recharging of lead storage cell.
EASY
Chemistry>Physical Chemistry>Electrochemistry>Common Types of Cells
Which of the following statements regarding the Leclanche cell is TRUE?
HARD
Chemistry>Physical Chemistry>Electrochemistry>Common Types of Cells

Explain the working of Daniel cell with a neat diagram.

EASY
Chemistry>Physical Chemistry>Electrochemistry>Common Types of Cells
In a hydrogen-oxygen fuel cell, the combustion of hydrogen occurs to
MEDIUM
Chemistry>Physical Chemistry>Electrochemistry>Common Types of Cells
Write the anode and cathode reactions that occur in the operation of a lead storage battery. Mention the electrolyte used in the battery.
MEDIUM
Chemistry>Physical Chemistry>Electrochemistry>Common Types of Cells

For lead storage battery pick the correct statements

A. During charging of battery, PbSO4 on anode is converted into PbO2

B. During charging of battery, PbSO4 on cathode is converted into PbO2

C. Lead storage battery consists of grid of lead packed with PbO2 as anode

D. Lead storage battery has ~38% solution of sulphuric acid as an electrolyte

Choose the correct answer from the options given below:

MEDIUM
Chemistry>Physical Chemistry>Electrochemistry>Common Types of Cells
What is the density of a solution of sulphuric acid used as an electrolyte in lead accumulators?
MEDIUM
Chemistry>Physical Chemistry>Electrochemistry>Common Types of Cells
What is battery? Give one example each of primary battery and secondary battery.
EASY
Chemistry>Physical Chemistry>Electrochemistry>Common Types of Cells
The cathode reaction in the dry cell will be
HARD
Chemistry>Physical Chemistry>Electrochemistry>Common Types of Cells
What type of battery is lead storage battery? Write the anode and cathode reactions and the overall cell reaction occurring in the operation of a lead storage battery.
HARD
Chemistry>Physical Chemistry>Electrochemistry>Common Types of Cells
Draw a neat labelled diagram of H2-O2 fuel cell. Write the reaction which occurs at cathode of the cell?
MEDIUM
Chemistry>Physical Chemistry>Electrochemistry>Common Types of Cells
Write the equations for the reactions taking place at anode and cathode in the lead-storage battery.
MEDIUM
Chemistry>Physical Chemistry>Electrochemistry>Common Types of Cells
While charging the lead storage battery
EASY
Chemistry>Physical Chemistry>Electrochemistry>Common Types of Cells
What is a secondary cell?
EASY
Chemistry>Physical Chemistry>Electrochemistry>Common Types of Cells
A device that converts energy of combustion of fuels like hydrogen and methane, directly into electrical energy is known as:
MEDIUM
Chemistry>Physical Chemistry>Electrochemistry>Common Types of Cells

On charging of lead storage cell

EASY
Chemistry>Physical Chemistry>Electrochemistry>Common Types of Cells
Which colourless gas evolves when NH4Cl reacts with zinc in a dry cell battery ?