Top 1000+ Solved Chemistry MCQ Questions Answer
Q. An acid having basicity one is -
a. Sodium dihydrogen phosphate
b. Disodium hydrogen phosphate
c. Sodium phosphate
d. Phosphoric acid
Q. Which one of the following vegetable oils is used in the manufacture of paints?
a. Palm oil
b. Sunflower oil
c. Linseed oil
d. Cottonseed oil
Q. The common name of sodium bicarbonate is -
a. Soda ash
b. Baking soda
c. Soda lime
d. Baking powder
Q. Which element behaves chemically both as metal and nonmetal?
a. Argon
b. Boron
c. Xenon
d. Carbon
Q. The amount of oxygen in the atmosphere remains relatively constant because it is given off by -
a. Oceans
b. Animals
c. Rocks
d. Plants
Q. Which one of the following mineral does not contain oxygen?
a. Haematite
b. Bauxite
c. Cryolite
d. Calcite
Q. The scientific name for common salt is-
a. Sodium hydroxide
b. Sodium chloride
c. Ammonium chloride
d. Sodium hydrogencarbonate
Q. Permanent - hardness of water may be removed by addition of –
a. Alum
b. Sodium carbonate
c. Lime
d. Potassium Permangante
Q. Which of the following is the best fuel in terms of energy released per gram of fuel?
a. Hydrogen
b. Methane
c. Ethanol
d. Butane
Q. The manufacture of iron from iron ore involves the process of –
a. oxidation
b. reduction
c. fractional distillation
d. electrolysis
Q. Which of the following is caused by the higher concentration of Nitrogen and Phosphorous?
a. Eutrophication
b. Hardness
c. Alkalinity
d. Acidity