Chemistry Quiz-2

1. Which of the following is not a fertilizer mineral?
(a) Nitrate
(b) Phosphate
(c) Tungsten
(d) Potash
[Answer : c]

2. Fog which consists of large particles of moisture is called–
(a) Mist
(b) Dew
(c) Cloud
(d) None of these
[Answer : a]

3. The acid used in automobile battery is–
(a) HCl
(b) HF
(c) HNO3
(d) H2SO4
[Answer : d]

4. Which of the following liquids is most fire-prone?
(a) Mobil oil
(b) Mercury
(c) Petrol
(d) Kerosene oil
[Answer : c]

5. Identify the main salts dissolved in ocean water.
I. Sodium chloride (NaCl) II. Sodium sulphate (Na2SO4)
III. Calcium carbonate (CaCO3) IV. Potassium sulphate (K2SO4)
(a) I and II
(b) I, II and III
(c) I, II, III and IV
(d) None of these
[Answer : c]

6. Which of the following seas has the highest salinity content?
(a) Aral Sea (b) Red Sea (c) Baltic Sea (d) Dead Sea
[Answer : d]

7. In which of the following activities Silicon Carbide is used ?
(a) Making cement and glass
(b) Disinfecting water and ponds
(c) Making castes for statues
(d) Cutting very hard substances
[Answer : d]

8. The element common to all acids is —
(a) Oxygen
(b) Hydrogen
(c) Nitrogen
(d) Sulphur
[Answer : b]

9. Gobar gas contains mainly —
(a) Methane
(b) Carbon dioxide
(c) Butane
(d) Carbon Monoxide
[Answer : a]

10. The most malleable metal is —
(a) Silver
(b) Gold
(c) Aluminium
(d) Sodium
[Answer : b]

11. Tetraethyl lead is used as —
(a) Mosquito repellent
(b) Pain Killer
(c) Fire extinguisher
(d) Petrol additive
[Answer : d]

12. Which of the following is used in beauty parlour for hair setting ?
(a) Phosphorus
(b) Sulphur
(c) Chlorine
(d) Silicon
[Answer : b]

13. Which of the following is a non-metal that remains liquid in room temperature ?
(a) Bromine
(b) Chlorine
(c) Helium
(d) Phosphorus
[Answer : a]

14. From which mineral is radium obtained —
(a) Limestone
(b) Haematitie
(c) Pitchblende
(d) Rutile
[Answer : c]

15. Which of the following metals forms an amalgum with other metals ?
(a) Lead
(b) Tin
(c) Zinc
(d) Mercury
[Answer : d]

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