Top 1000+ Solved Chemistry MCQ Questions Answer
Q. A colloidal system in which a liquid is dispersed in a liquid is called –
a. gel
b. emulsion
c. sol
d. precipitate
Q. When a lead storage battery is discharged -
a. SO2 is evolved
b. Lead sulphate is consumed
c. Lead is formed
d. Sulphuric acid is consumed
Q. Atomic number of which of the following elements is greater than that of Fluorine?
a. Sodium
b. Beryllium
c. Nitrogen
d. Boron
Q. Washing soda is the common name of-
a. Calcium Carbonate
b. Calcium Bi-Carbonate
c. Sodium Carbonate
d. Sodium Bi-Carbonate
Q. Which one of the following is known as the 'brown coal'?
a. Anthracite
b. Bituminous
c. Coke
d. Lignite
Q. Maximum permissible concentration of copper in drinking water in mg/L, is –
a. 0.01
b. 0.05
c. 1.0
d. 2.0
Q. Which one of the following elements is used in the manufacture of fertilizers?
a. Fluorine
b. Potassium
c. Lead
d. Aluminium
Q. When Hydrogen starts burning in air, it produces?
a. Ammonia
b. Water
c. Methane
d. Carbonic Acid
Q. In an oxygen molecule, two atoms are united by -
a. one bond
b. two bonds
c. three bonds
d. four bonds
Q. The inert gas which is substituted for nitrogen in the air used by deep sea divers for breathing is –
a. Neon
b. Krypton
c. Argon
d. Helium