Commonly used refrigerant in India is

A. Calcium

B. Sodium acetate

C. Ammonia

D. Methane

Answer: Option C

Solution(By Examveda Team)

Commonly used refrigerant in India is Ammonia.
Ammonia has become the obvious choice for India as a natural refrigerant as it is the most energy efficient having zero global warming potential and zeroes ozone depletion potential.
Ammonia is the most environmentally friendly refrigerant. It belongs to the group of so-called "natural" refrigerants, and it has both GWP (Global Warming Potential) and ODP (Ozone Depletion Potential) equal to zero.