Top 1000+ Solved Chemistry MCQ Questions Answer
Q. Which of the following processes is used for the production of Biodiesel?
a. Transamination
b. Transcription
c. Transesterification
d. Translation
Q. A matured mammalian cell without nucleus is –
a. Lymphocyte
b. Erythrocyte
c. Spermatozoan
d. Oocyte
Q. The most common cause of pollution of air is –
a. Carbon dioxide
b. Carbon monoxide
c. Sulphur dioxide
d. Smoke
Q. The main source of carbon monoxide is
a. Industrial process
b. Fuel combustion
c. Transportation
d. Solid waste disposal
Q. Tooth enamel is the hardest substance found in the human body. What is it made up of -
a. Calcium carbonate
b. Limestone
c. Calcium phosphate
d. Calcium fluoride
Q. Which of the following metals is used in Space Crafts to withstand high temperatures?
a. Fe
b. Ti
c. Ni
d. Pb
Q. Brass gets discoloured in air due to constant exposure in presence of:
a. Aluminium phosphide
b. Hydrogen sulphide
c. Hydrogenated wafers
d. Aluminium sulphide
Q. Neutrons are slowed down in a nuclear reactor by –
a. Fissionable Material
b. Moderator
c. Control rods
d. Cooling system
Q. Mechanical energy is the combination of kinetic energy and .
a. Heat energy
b. Chemical energy
c. Potential energy
d. Nuclear energy
Q. Substances that cause a reaction to occur or proceed at a different rate without the reaction itself being affected are called -
a. Catalysts
b. Hydrocarbons
c. Oxidising agents
d. Substitutes
Q. Which one of the following elements exhibits the greatest tendency to lose electrons?
a. Fluorine
b. Lithium
c. Oxygen
d. Zine