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- Question
The main element used in the vulcanisation of rubber is
Options- A. nickel
- B. copper
- C. sulphur
- D. graphite
- Correct Answer
- sulphur
ExplanationIn vulcanization, cruder rubber is heated with 3% sulphur at about for for 2-3 hours.
Vulcanised rubber is a vastly improved product.
- 1. First Olympic Games were held in
Options- A. 876 BC
- B. 798 BC
- C. 776 BC
- D. 898 BC Discuss
- 2. The minimum age required to become the prime minister of India is
Options- A. 25 years
- B. 30 years
- C. 40 years
- D. 35 years Discuss
- 3. India reached the final of the Davis Cup for the first time in...?
Options- A. 1964
- B. 1966
- C. 1970
- D. 1974 Discuss
- 4. Which of the following is tropical grassland?
Options- A. Taiga
- B. Savannah
- C. Pampas
- D. Prairies Discuss
- 5. Indian Cancer Research institute is located at
Options- A. New Delhi
- B. Calcutta
- C. Chennai
- D. Mumbai Discuss
- 6. The ratio of land to ocean in the southern hemisphere is
Options- A. 1 to 1.5
- B. 1 to 1
- C. 1 to 4
- D. 1 to 10 Discuss
- 7. How many players are there in Water Polo team?
Options- A. 4
- B. 5
- C. 6
- D. 7 Discuss
- 8. Gangubai hangal is the name associated with
Options- A. Literature
- B. Music
- C. Journalism
- D. Environment Discuss
- 9. The largest production of mica in Asia is from
Options- A. Indonesia
- B. Malaysia
- C. Myanmar
- D. India Discuss
- 10. Plants synthesis protein from
Options- A. starch
- B. sugar
- C. amino acids
- D. fatty acids Discuss
More questions
Correct Answer: 776 BC
Correct Answer: 25 years
Correct Answer: 1966
Correct Answer: Savannah
Correct Answer: Mumbai
Correct Answer: 1 to 4
Correct Answer: 7
Correct Answer: Music
Correct Answer: India
Correct Answer: amino acids
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