(A) Argon
(B) Krypton
(C) Xenon
(D) Helium
Author:
Inorganic natural resource of the earth is?
(A) Coal
(B) Microbes
(C) Mineral fuels
(D) Wood
Among following which gas does not pollute air?
(A) Sulphur Dioxide
(B) Nitrogen Dioxide
(C) Carbon Dioxide
(D) Carbon Monoxide
Among following which solution have the highest boiling point?
(A) 1% CaCl2 in water
(B) 1% Sucrose in water
(C) 1% NaCl in Water
(D) None of the above
Sea water is converted into fresh water by using?
(A) Diffusion
(B) Reverse osmosis
(C) Plasmolysis
(D) None of the above
In the periodic table elements have been arranged?
(A) In order of density
(B) In order of atomic weights
(C) In order of increasing atomic number
(D) None of the above
Which group of compounds constitute carbohydrates?
(A) Starch and Sugar
(B) Fats and Sugar
(C) Fats, Sugar and Proteins
(D) None of the above
Which country names first envoy to Iran in over six years?
(A) Syria
(B) Yemen
(C) Kuwait
(D) Saudi Arabia