EASY
Earn 100

Name the type of cell which was used in Apollo space programme for providing electrical power.

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
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
Define fuel cell and write its two advantages.
MEDIUM
Chemistry>Physical Chemistry>Electrochemistry>Common Types of Cells
Write the equations of the reactions involved at each electrode in a H2 - O2 fuel cell.
EASY
Chemistry>Physical Chemistry>Electrochemistry>Common Types of Cells
Which colourless gas evolves when NH4Cl reacts with zinc in a dry cell battery ?
EASY
Chemistry>Physical Chemistry>Electrochemistry>Common Types of Cells
What are fuel cells?
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?
EASY
Chemistry>Physical Chemistry>Electrochemistry>Common Types of Cells
Fuel Cells are better than other cells. Give any two reasons.
EASY
Chemistry>Physical Chemistry>Electrochemistry>Common Types of Cells
The cathode reaction in the dry cell will be
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
What are fuel cells? Give the construction of H2-O2 fuel cell.
EASY
Chemistry>Physical Chemistry>Electrochemistry>Common Types of Cells
In a typical fuel cell, the reactants (R) and product (P) are :-
MEDIUM
Chemistry>Physical Chemistry>Electrochemistry>Common Types of Cells
What are fuel cells? Write two advantages of a fuel cell.
MEDIUM
Chemistry>Physical Chemistry>Electrochemistry>Common Types of Cells
Give two advantages of fuel cells.
EASY
Chemistry>Physical Chemistry>Electrochemistry>Common Types of Cells
Write a note on hydrogen-oxygen fuel cell.
EASY
Chemistry>Physical Chemistry>Electrochemistry>Common Types of Cells
Write any two advantages of fuel cells.
HARD
Chemistry>Physical Chemistry>Electrochemistry>Common Types of Cells
Diagrammatically represent H2-O2 fuel cell and write the half cell reactions taking place in this cell.
EASY
Chemistry>Physical Chemistry>Electrochemistry>Common Types of Cells
Which of the following statements regarding the Leclanche cell is TRUE?
EASY
Chemistry>Physical Chemistry>Electrochemistry>Common Types of Cells
In a hydrogen-oxygen fuel cell, the combustion of hydrogen occurs to
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?