The protein Improtin-11, that was recently identified by scientists, is linked with causing which type of cancer?

A. Blood cancer
B. Colorectal cancer
C. Lung cancer
D. Prostate cancer

When an acid reacts with a metal, which one of the following gas is usually liberated?

A. Ammonia gas
B. Chlorine
C. Oxygen
D. Hydrogen gas

Proton number is denoted by symbol __________ ?

A. M
B. Z
C. P
D. A

Elements which have same number of protons but different number of neutrons are called as _________ ?

A. Isotopes
B. Isomers
C. Allotropes
D. Allomers

Hydrogen bomb is based on the principle of ________ ?

A. Nuclear fusion
B. Artificial radioactivity
C. Natural radioactivity
D. Nuclear fission

Brass gets discoloured in air because of the presence of which of the following gases in air ________ ?

A. Carbon dioxide
B. Oxygen
C. Nitrogen
D. Hydrogen sulphide

A ‘breath test’ used by traffic police to check drunken driving uses ____?

A. Turmeric on filter paper
B. Silica gel coated with silver nitrate
C. Potassium permanganate-sulphuric acid
D. Potassium dichromatic-sulphuric acid

What is the chemical formula for Sodium carbonate _______ ?

A. Na3co2
B. Cna2o3
C. Na2co3
D. Na3co3

A mixture of sand and naphthalene can be separated by ________ ?

A. Chromatography
B. Fractional distillation
C. Sublimation
D. None of these

The M.K.S. system was first introduced by _________ ?

A. Giorgi
B. Archimedes
C. Eienstein
D. Newton