Top 1000+ Solved Chemistry MCQ Questions Answer
Q. Energy use in solar cookers, solar distillation plants, solar power plants is known as –
a. chemical energy
b. solar energy
c. thermal energy
d. nuclear energy
Q. 'Vinegar' is a commercial name of –
a. Oxalic acid
b. Hydrochloric acid
c. Acetic acid
d. Citric acid
Q. Which metal does not undergo corrosion due to the formation of oxide layer?
a. Copper
b. Iron
c. Aluminium
d. Zinc
Q. Submarines move under water. They have engines that run on -
a. Petrol and oxygen
b. Diesel
c. Batteries
d. Steam
Q. The process of purifying water by spraying water on to a bed of stones where microorganism live so that the microorganisms feed on the pathogens in water and make the water free from harmful pathogens is called?
a. Stone bed method
b. biofilter method
c. aerobic filtration
d. anerobic filtration
Q. As per Avogadro‘s hypothesis , equal volumes of different gases at the same temperatureand pressure contain equal number of ______?
a. Atoms
b. Molecules
c. Particles
d. Electrons
Q. Duralumin which is used in making aero planes is an alloy consisting of _____?
a. Aluminum & Copper
b. Aluminum, Copper & Manganese
c. Aluminum, Copper, Manganese & Magnesium
d. Aluminum and zinc
Q. Which among the following was the first artificially produced element?
a. Neptunium
b. Ununbium
c. Technetium
d. none of the above
Q. Froth & Foams are examples of which of the following ?
a. solid suspended in gas
b. liquid suspended in gas
c. gas suspended in liquid
d. gas suspended in solid
Q. Which among the following is most electronegative element?
a. Chlorine
b. FLourine
c. Bromine
d. All of them have same electronegativity
Q. What is the main use of Bisphenol A drug ?
a. A drug which was used by sports persons for doping
b. A chemical compound which is used in plastics used for food packaging
c. An alloy which is used in cans of cola drinks
d. None of the above