(A) Electrons
(B) Radioactivity
(C) Ionization
(D) Valency
Tag: Chemistry mcqs
Engines of the rocket that helped the apollo II aircraft to land on the moon used for rocket fuel power?
(A) Propane
(B) Hydrazine
(C) Water
(D) Oxygen
Milk is colloid in which?
(A) A solid is dispersed in liquid
(B) A liquid is dispersed in liquid
(C) Some sugar is dispersed in water
(D) None of the above
Reaction takes place at anode and cathode are respectively?
(A) Reduction, Oxidation
(B) Reduction, Hydrolysis
(C) Oxidation, Hydrolysis
(D) Oxidation, Reduction
Milk can be prepared by a few drops of?
(A) Formaldehyde solution
(B) Formic acid solution
(C) Acetic acid
(D) None of the above
During electrolysis metals are deposited at cathode because the cathode?
(A) Withdraw electrons
(B) Undergoes oxidation
(C) Supplies electrons
(D) None of the above
In a periodic table moving from left to right in a period the metallic character of elements?
(A) Increases and them decreases
(B) Remains constant
(C) Increases
(D) Decreases
When radioactive rays passed through air or any gas they cause it to?
(A) Evaporate
(B) Freeze
(C) Boil
(D) Ionize