Night vision is possible with the help of ___________?

A. Red light
B. Violet light
C. Infrared rays
D. Ultra violet light

Dr. James Watson discovered the structure of DNA in __________?

A. 1953
B. 1955
C. 1957
D. 1857

The chief constituents of gobar gas is_________?

A. Methane
B. Oxygen
C. Hydrogen
D. Carbon monoxide

The distance between the earth and the sun is smallest in the month of _________?

A. February
B. January
C. December
D. April

The amount of Benzene is obtained from Coal Tar on its Fractional Distillation?

A. 1-2kg
B. 1-3kg
C. 1-4kg
D. 1-5kg

Which of the following is a soft Coal?

A. Peat
B. Lignite
C. Bituminous
D. Anthracite

Oxalate ion behaves as a ________ ligand.

A. Unidentate
B. Bidentate
C. Tridentate
D. Hexadentate

Coal gas is made up of mostly ________ & _________?

A. Hydrogen & water
B. Hydrogen & carbon dioxide
C. Hydrogen & methane
D. Carbonmonoxdide & water

Ammonium cynanate was 1st Inorganic compound that was converted into an Organic compound (in Lab) through boiling water. The organic compound was____.

A. Methane
B. Ethanol
C. Acetic acid
D. Urea

Mohus scale is used for to measure ____________?

A. Hardness
B. Humidity
C. Pressure
D. Temperature