Top 1000+ Solved Chemistry MCQ Questions Answer
Q. The metallic Constituents of hard water are –
a. Magnesium, calcium and tin
b. Iron, tin and calcium
c. Calcium, magnesium and iron
d. Magnesium, tin and iron
Q. Which of the following is used as a lubricant in heavy machines?
a. Bauxite
b. Sulphur
c. Phosphorus
d. Graphite
Q. What is the element that is in the highest percentage in the composition of the earth?
a. Silicon
b. Oxygen
c. Magnesium
d. Iron
Q. Which of the following is used to iodise common salt?
a. Potassium iodide
b. Iodine
c. Potassium iodate
d. Sodium iodide
Q. Which of the following imparts deep blue colour to glass?
a. Cobalt oxide
b. Cupric oxide
c. Ferrous oxide
d. Nickel oxide
Q. The cathode of a lead storage battery is made up of –
a. Zinc
b. Lead
c. Lead oxide
d. Manganese dioxide
Q. Who is regarded as father of modern chemistry?
a. Ruterford
b. Einstein
c. Lavoisier
d. C.V. Raman
Q. Kidney stones are mainly formed by which of the following compound -
a. Sodium chloride
b. Silicates
c. Calcium bicarbonate
d. Calcium oxalate