Main use of liquid nitrogen is in Options: A . &nbspRocket propulsion B . &nbspMaking gun powder C . &nbspDetergent manufacture D . &nbspRefrigerative cooling

Main use of liquid nitrogen is in

Question

Main use of liquid nitrogen is in

Options:

A . Rocket propulsion

B . Making gun powder

C . Detergent manufacture

D . Refrigerative cooling

Answer: Option D

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