Chemical Process
Main use of liquid nitrogen is in

Rocket propulsion
Making gun powder
Detergent manufacture
Refrigerative cooling

ANSWER DOWNLOAD EXAMIANS APP

Chemical Process
Presence of sodium tripolyphosphate (an additive) in synthetic detergent

Inhibits its corrosive effects
Facilitates its use even in hard water (by sequestering the water-hardening Ca & Mg ions)
None of these
Does not allow redeposition of dirt on the cleaned surface

ANSWER DOWNLOAD EXAMIANS APP