G.K. Practice Test: Question Set - 06
1. Which of the following is a non metal that remains liquid at room temperature?
- (A) Phosphorous
- (B) Bromine
- (C) Chlorine
- (D) Helium
2. Which of the following metals forms an amalgam with other metals?
- (A) Tin
- (B) Mercury
- (C) Lead
- (D) Zinc
3. The gas usually filled in the electric bulb is
- (A) Nitrogen
- (B) Hydrogen
- (C) Carbon
dioxide
- (D) Oxygen
4. Which of the gas is not known as green house gas?
- (A) Methane
- (B) Nitrous
oxide
- (C) Carbon
dioxide
- (D) Hydrogen
5. The hardest substance available on earth is
- (A) Gold
- (B) Iron
- (C) Diamond
- (D) Platinum
6. Which of the following is used as a lubricant?
- (A) Graphite
- (B) Silica
- (C) Iron Oxide
- (D) Diamond
7. When an iron nail gets rusted, iron oxide is formed
- (A) Without
any change in the weight of the nail
- (B) With
decrease in the weight of the nail
- (C) With
increase in the weight of the nail
- (D) Without any
change in colour or weight of the nail
8. Galvanized iron sheets have a coating of
- (A) Lead
- (B) Chromium
- (C) Zinc
- (D) Tin
9. The element common to all acids is
- (A) Hydrogen
- (B) Carbon
- (C) Sulphur
- (D) Oxygen
10. Monazite is an ore of
- (A) Titanium
- (B) Zirconium
- (C) Iron
- (D) Thorium
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