Top 1000+ Solved Chemistry MCQ Questions Answer
Q. Potassium permanganate is used to purify water. Which among the following properties ofPotassium permanganate helps in this work?
a. sterilizing
b. oxidizing
c. reducing
d. leaching
Q. What happens to the weight of Iron, when it rusts?
a. Increases for long time
b. Decreases then increases
c. Increases then decreases
d. Remains the same
Q. Lightest and most abundant chemical element, constituting roughly 75 % of the Universe‘selemental mass.
a. Carbon
b. Aluminium
c. Bauxite
d. Hydrogen
Q. A cotton wick dipped in pure honey when ignited with a matchstick will ______?
a. Burn Consistently
b. Burn with cracking sound
c. Does not burn at all
d. Burns with too much smoke
Q. The easily noticed smell of the LPG gas is because of which among the following?
a. Butane
b. Propane
c. Methane
d. Ethanethiol
Q. Which compound of mercury is used as antiseptic?
a. Mercuric sulphide
b. Mercuric oxide
c. Mercuric chloride
d. Mercuric iodide
Q. Which among the following metal is highest electrical conductivity as well as highestthermal conductivity?
a. Gold
b. Silver
c. Platinum
d. Iron
Q. Trimethylxanthine is a chemical name of a stimulant which is found in tea and coffee.What is the popular name?
a. Thein
b. Caffeine
c. Theobromine
d. Theophylline
Q. What are the main constituents of LPG?
a. Methane, Hexane, Ethane
b. Methane, Butane, Propane
c. Ethane, Pentane, Hexane
d. Ethane, Methane, Pentane
Q. Which among the following is known as White Vitriol?
a. Zinc Sulphate
b. Zinc Chloride
c. Zinc Phosphate
d. Zinc oxide
Q. In which among the following forms, Nitrogen is present in Urea?
a. Nitrite
b. Nitrate
c. Ammonium
d. Amide
Q. Which among the following substances is most suitable for making Compact Discs?
a. PVC
b. Polyethylene
c. Polyamides
d. Polycarbonates