List of top General Knowledge Questions on Science asked in PGIMER

IC chips in computers are usually made of which material?
Night blindness is caused by the deficiency of which vitamin?
Which vitamin is found in lemon and orange?
On what principle does the atomic bomb work?
Which part of the body is affected by pyorrhoea?
The neutron was discovered by:
The full form of LPG is:
Brass is an alloy made of which two metals?
What does the Richter scale measure?
How is the age of the Earth measured?
Which gas was traditionally used in refrigerators?
What is the hardest natural substance known?