Top 1000+ Solved Chemistry MCQ Questions Answer
Q. The particle required to continue the chain process of Uranium fission is –
a. Electron
b. Proton
c. Neutron
d. Positron
Q. Which of the following is used to increase the anti-knocking property of petrol?
a. Tetramethyl lead
b. Tetraethyl lead
c. nimethyl lead
d. Triethyl lead
Q. Chemical name of bleaching powder is
a. Calcium chlorate
b. Calcium hypochlorite
c. Calcium chloro hypochlorite
d. Calcium bi chloride
Q. Alcoholic OH) group can be identified by :
a. Tolien's Reagent Test
b. Esterification Test
c. FeCl3 Test
d. Ozonolysis Reaction
Q. When ice cubes are made, the entropy of water –
a. does not change
b. decreases
c. increases
d. may either increase or decrease depending on the process used
Q. In arc welding, Argon is used because of its -
a. Low reactivity with metal
b. Ability to lower the melting point of the metal
c. High flammability
d. High calorific value
Q. Kinetics is the study of:
a. The rate of chemical reaction
b. How fast the reactions go
c. The mechanisms and paths of the molecules take in joining from one reactant to products
d. All of these are correct
Q. Superconductivity is a material property associated with -
a. cooling a substance without a phase change
b. frictionless liquid flow
c. a loss of thermal resistance
d. a loss of electrical resistance
Q. What role does enzyme pepsin play?
a. It converts fats into acids
b. If converts fats into glycerol
c. It converts proteins into peptones
d. It converts starch into sugar
Q. Water gas is the mixture of –
a. carbon dioxide and hydrogen
b. carbon monoxide and nitrogen
c. carbon monoxide and hydrogen
d. carbon dioxide and nitrogen
Q. Hardness of the water is commonly measured in terms of -
a. Calcium carbonate equivalents
b. Calcium sulphate equivalents
c. Magnesium carbonate equivalents
d. Magnesium sulphate equivalents
Q. One property of ammonia is –
a. It is insoluble in water
b. it is a odourless gas
c. It is a yellowish gas
d. Its aqueous solution turns red litmus blue
Q. ‘Aerosol’ is -
a. Suspended solid particles in air
b. Pollutant gas, present in air
c. (8) Microbes, present in air
d. Green house gas present in air
Q. Bridgmanite is –
a. A bridge on the river Thames
b. Name of a game
c. Earth's most abundant mineral
d. Name of a music