The gas used in a refrigerator to cool water is___________?

The gas used in a refrigerator to cool water is___________?

A. Nitrogen
B. Carbon dioxide
C. Methane
D. Tetrafluoroethane

Tetrafluoroethane: It is one of the commonly used refrigerant gases which you can find in almost all the present time refrigerators. This gas is condensed effectively so that it can cool down the surroundings of the machine without causing the problem of ozone depletion.

Article 58(2b) of constitution 1973 is about:

Article 58(2b) of constitution 1973 is about:

A. Power of President to dismiss Army Chief
B. Power of President to dissolve Provincial Assemblies
C. Power of President to dissolve National Assembly
D. Power of President to dissolve Senate