Under critical temperature, on compressing gases turn to liquid, because:

• molecules are of finite size.
• molecules have random motion.
• molecules have inter-molecular forces.
• molecules are spherical.
Correct Option: C  [ molecules have inter-molecular forces. ]

Remark:

The Kyoto Protocol is associated with :

• Environment
• Nuclear Power
• Trade
• none of these
Correct Option: A  [ Environment ]

Remark:

A car is moving on a road and rain is falling vertically. Select the correct answer:

• The rain will strike the wind screen only
• The rain will strike the front screen only
• The rain will strike both the screens
• The rain will not strike any of the screens
Correct Option: B  [ The rain will strike the front screen only ]

Remark:

Penicillin was invented by:

• Christian Bernard
• Alexander Fleming
• Mc Collum
• William Harvey
Correct Option: B  [ Alexander Fleming ]

Remark:

The largest artery in human body is:

• Aorta
• Capillary
• Vena cava
• Pulmonary vein
Correct Option: A  [ Aorta ]

Remark: The aorta is the largest artery of the body and carries blood from the heart to other part of the body.

Which one among the following is strong smelling agent used in LPG cylinder to help in the detection of gas leakage?

• Ethanol
• Thioethanolanine
• Methane
• Chloroform
Correct Option: B  [ Thioethanolanine ]

Remark:

The first nuclear test conducted by India under the code name of "Smiling Buddha" was in the year:

• 1973
• 1974
• 1975
• 1976
Correct Option: B  [ 1974 ]

Remark: