Online GK Series

This site is dedicated to the aspirants of competitive exams SSC, UPSC, Railways, Postal Assistants, Bank, GATE and NET

Q.

The chemical used for cooling in refrigeration is :

A CO2
B NH4CI
C NH4OH
D Liquified ammonia
Answer & Explanation
Option: [C]

Your Valuable Comments Please...

Please Like Us
Brand

Recommended Books for Competitive Exams

VIEW ALL