Top 1000+ Solved Chemistry MCQ Questions Answer
Q. Isobars are lines joining places having equal –
a. Rainfall
b. Pressure
c. Population
d. Height above sea-level
Q. Global warming is mainly due to accumulation of –
a. Oxides of nitrogen
b. Oxides of sulphur
c. Carbon dioxide
d. Carbon monoxide
Q. The most suitable vessel for storing concentrated sulphuric acid is –
a. Copper vessel
b. Aluminium vessel
c. Glass vessel
d. Earthen vessel
Q. The radioactive element used in heart pacemakers is –
a. Uranium
b. Deuterium
c. Plutonium
d. Radium
Q. The element which is commonly used in nuclear for producing electricity by nuclear fission is –
a. Radium
b. Plutonium
c. Uranium
d. Deuterium
Q. Which of the following vegetable oils does not contain essential fatty acids?
a. Sunflower oil
b. Mustard oil
c. Coconut oil
d. Gmundnut oil
Q. Which of the following compounds is commonly used as an antiseptic in mouthwashes and toothpastes?
a. Borax
b. Saltpetre
c. Hydrogen peroxide
d. Sodium chloride
Q. Which one of the following is used to restore the colour of old oil-paintings?
a. Ozone
b. Hydrogen peroxide
c. Barium peroxide
d. Sodium peroxide
Q. A mixture of benzene and toluene forms
a. Non-ideal solution
b. Ideal solution
c. Emulsion
d. Suspension
Q. The aqueous solution of which acids is called Vinegar -
a. Citric acid
b. Hydrochloric acid
c. Acetic acid
d. Oxalic acid
Q. What happens to its potential energy when an object is taken to high altitude?
a. Its potential energy increases
b. Its potential energy decreases
c. Its potential energy remain same
d. None of the above
Q. Which one of the following noble gases is not found in the atmosphere?
a. Argon
b. Krypton
c. Radon
d. Xenon