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- Question
Who invented the modern periodic table?
Options- A. Faraday
- B. Mendeleev
- C. Newton
- D. Bohr
- Correct Answer
- Mendeleev
- 1. Which of the following is not a nitrogenous fertiliser?
Options- A. Ammonium sulphate
- B. Urea
- C. Ammonium nitrate
- D. Superphospohate Discuss
- 2. Which one of the following nonmetals shows allotropy in the liquid state?
Options- A. Carbon
- B. Sulphur
- C. Phosphorous
- D. Bromine Discuss
- 3. Which of the following is a natural polymer?
Options- A. Bakelite
- B. Nylon
- C. Polythene
- D. Starch Discuss
- 4. At low temperature, Lead behaves as a :
Options- A. Semi conductor
- B. Super conductor
- C. Insulator
- D. Conductor Discuss
- 5. Turquoise is an ore/mineral of
Options- A. Copper
- B. Manganese
- C. Mercury
- D. Tin Discuss
- 6. The compound used in prickly-heat powder to prevent excessive sweating is
Options- A. Boric acid
- B. Phosphoric acid
- C. Carbonic acid
- D. Sulphonic acid Discuss
- 7. Which among the following has the maximum density?
Options- A. Water
- B. Ice
- C. Ethylene
- D. Acetone Discuss
- 8. What is the product formed when sodium bicarbonate is heated strongly?
Options- A. Sodium Carbonate
- B. Sodium Hydroxide
- C. Sodium Peroxide
- D. Sodium Monoxide Discuss
- 9. The most pure form of carbon among the options is
Options- A. Anthracite
- B. Lampblack
- C. Graphite
- D. Wood Charcoal Discuss
- 10. The reactions in which oxidation and reduction occur simultaneously are called _______.
Options- A. Feral reactions
- B. Redox reactions
- C. Demug reactions
- D. Kerol reactions Discuss
Chemistry problems
Search Results
Correct Answer: Superphospohate
Correct Answer: Sulphur
Correct Answer: Starch
Correct Answer: Super conductor
Correct Answer: Copper
Correct Answer: Boric acid
Correct Answer: Water
Correct Answer: Sodium Carbonate
Correct Answer: Anthracite
Correct Answer: Redox reactions
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