Discussion
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- Question
The gas usually filled in the electric bulb is
Options- A. nitrogen
- B. hydrogen
- C. carbon dioxide
- D. oxygen
- Correct Answer
- nitrogen
- 1. Which of the following is used as a lubricant?
Options- A. Graphite
- B. Silica
- C. Iron Oxide
- D. Diamond Discuss
- 2. The filament of an electric bulb is made of
Options- A. tungsten
- B. nichrome
- C. graphite
- D. iron Discuss
- 3. Which of the following is an element?
Options- A. Ruby
- B. Sapphire
- C. Emerald
- D. Diamond Discuss
- 4. Monazite is an ore of
Options- A. titanium
- B. zirconium
- C. iron
- D. thorium Discuss
- 5. Permanent hardness of water can be removed by adding
Options- A. chlorine
- B. washing soda
- C. potassium permanganate
- D. bleaching powder Discuss
- 6. Non stick cooking utensils are coated with
Options- A. Teflon
- B. PVC
- C. black paint
- D. polystyrene Discuss
- 7. Tetraethyl lead is used as
Options- A. pain killer
- B. fire extinguisher
- C. mosquito repellent
- D. petrol additive Discuss
- 8. Diamond is an allotropic form of
Options- A. germanium
- B. carbon
- C. silicon
- D. sulphur Discuss
- 9. The hardest substance available on earth is
Options- A. Gold
- B. Iron
- C. Diamond
- D. Platinum Discuss
- 10. The name of the Laccadive, Minicoy and Amindivi islands was changed to Lakshadweep by an Act of Parliament in
Options- A. 1970
- B. 1971
- C. 1972
- D. 1973 Discuss
General Science problems
Search Results
Correct Answer: Graphite
Correct Answer: tungsten
Correct Answer: Diamond
Correct Answer: thorium
Correct Answer: washing soda
Correct Answer: Teflon
Correct Answer: petrol additive
Correct Answer: carbon
Correct Answer: Diamond
Correct Answer: 1973
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