Discussion
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- Question
Which of the following is used as a lubricant?
Options- A. Graphite
- B. Silica
- C. Iron Oxide
- D. Diamond
- Correct Answer
- Graphite
- 1. The filament of an electric bulb is made of
Options- A. tungsten
- B. nichrome
- C. graphite
- D. iron Discuss
- 2. Which of the following is an element?
Options- A. Ruby
- B. Sapphire
- C. Emerald
- D. Diamond Discuss
- 3. Monazite is an ore of
Options- A. titanium
- B. zirconium
- C. iron
- D. thorium Discuss
- 4. Permanent hardness of water can be removed by adding
Options- A. chlorine
- B. washing soda
- C. potassium permanganate
- D. bleaching powder Discuss
- 5. The property of a substance to absorb moisture from the air on exposure is called
Options- A. osmosis
- B. deliquescence
- C. efflorescence
- D. desiccation Discuss
- 6. The gas usually filled in the electric bulb is
Options- A. nitrogen
- B. hydrogen
- C. carbon dioxide
- D. oxygen Discuss
- 7. Non stick cooking utensils are coated with
Options- A. Teflon
- B. PVC
- C. black paint
- D. polystyrene Discuss
- 8. Tetraethyl lead is used as
Options- A. pain killer
- B. fire extinguisher
- C. mosquito repellent
- D. petrol additive Discuss
- 9. Diamond is an allotropic form of
Options- A. germanium
- B. carbon
- C. silicon
- D. sulphur Discuss
- 10. The hardest substance available on earth is
Options- A. Gold
- B. Iron
- C. Diamond
- D. Platinum Discuss
General Science problems
Search Results
Correct Answer: tungsten
Correct Answer: Diamond
Correct Answer: thorium
Correct Answer: washing soda
Correct Answer: deliquescence
Correct Answer: nitrogen
Correct Answer: Teflon
Correct Answer: petrol additive
Correct Answer: carbon
Correct Answer: Diamond
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