Top 1000+ Solved Chemistry MCQ Questions Answer
Q. Who developed atom bomb?
a. Warn& Wan Brown
b. J. Robert Openheimer
c. Edward Taylor
d. Samuel Koehen
Q. The major harmful gas emitted by automobile vehicle which causes air pollution is –
a. Carbon Monoxide
b. Methane
c. Carbon dioxide
d. Ozone gas
Q. Humburger effect is otherwise known as-
a. Sodium pump
b. Anaerobic metabolism
c. Choloride shift
d. Respiratory product
Q. What is the number of atoms constituting a molecule known as -
a. Atomic number
b. Isotopes
c. Atomic mass
d. Atomicity
Q. If water smells bad, then that odour can be removed by adding -
a. alum
b. bleach
c. activated carbon
d. deactivated nitrogen
Q. Substance used as an anti-freeze in radiators of automobiles is :
a. Methyl alcohol and H2O
b. Methy] alcohol
c. Ethyl alcohol
d. Ethyl alcohol and H2O
Q. The function of sedimentation tank in sewage treatment is to:
a. Disinfect the sewage
b. Remove water content
c. Aerate the sewage
d. Remove suspended solids
Q. Wich of the following is a method/process of disposing of solid waste which cannot be re-used or recycled?
a. Landfills
b. Incineration
c. Pyrolysis and Gasification
d. An the above
Q. Sulphur dioxide bleaches colouring matter by –
a. Reduction
b. Dehydration
c. Decomposition
d. Oxidation
Q. Which of the following elements is not radioactive?
a. Radium
b. Plutonium
c. Zirconium
d. Uranium