Science Quizzzzz For Students

1  Gobar gas contains mainly —
(A) Methane
(B) Carbon dioxide
(C) Butane
(D) Carbon Monoxide

2. The most malleable metal is —
(A) Silver
(B) Gold
(C) Aluminium
(D) Sodium

3. Tetraethyl lead is used as —
(A) Mosquito repellent
(B) Pain Killer
(C) Fire extinguisher
(D) Petrol additive

4. Which of the following is used in beauty parlours for hair setting ?
(A) Phosphorus
(B) Sulphur
(C) Chlorine
(D) Silicon

5. Which of the following is a non-metal that remains liquid in room temperature ?
(A) Bromine
(B) Chlorine
(C) Helium
(D) Phosphorus

6. From which mineral is radium obtained —
(A) Limestone
(B) Haematitie
(C) Pitchblende
(D) Rutile

7. What is laughing gas ?
(A) Carbon dioxide
(B) Sulphur dioxide
(C) Nitrogen Dioxide
(D) Nitrous oxide

8. Which of the following is used as a material for making protective windows in space probes ?
(A) Steel
(B) Graphite
(C) Tungsten
(D) Diamond

9. Which form of phosphorus is used in safety metals?
(A) Red Phosphorus
(B) White Phosphorus
(C) Yellow Phosphorus
(D) Black Phosphorous

10. Stainless steel is an alloy of —
(A) Iron, Carbon and Nickel
(B) Iron and Manganese
(C) Iron, Chromium and Zinc
(D) Iron, Chromium and Nickel

11. Which of the following is not correctly matched ?
(A) Galena : Lead Sulphide
(B) Green vitriol : Copper sulphate
(C) Plaster of Paris : Calcium sulphate
(D) Calomel : Mercurous Chloride

12. Which of the following metals forms an amalgum with other metals ?
(A) Lead
(B) Tin
(C) Zinc
(D) Mercury

Answer is
1. (A) 2. (B) 3. (D) 4. (B)
5. (A) 6. (C) 7. (D) 8. (D)
9. (A) 10. (D) 11. (B) 12. (D)