Discussion
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- Question
Which of the following is false?
Options- A. Hydrogen atom is roughly a third of the mass of tritium
- B. Deuterium is called heavy hydrogen
- C. Deuterium atom has 1 neutron
- D. Protium is the rarest isotope of hydrogen
- Correct Answer
- Protium is the rarest isotope of hydrogen
- 1. Methane an air pollutant is produced ______.
Options- A. by action of ultraviolet light on nitrogenous compounds.
- B. as a by-product of manufacturing ammoniacal fertilizers
- C. by burning of coal in insufficient air
- D. by digestion of food by animals Discuss
- 2. The upper part of the heterosphere is composed almost completely of which gas?
Options- A. Ozone
- B. Nitrogen
- C. Oxygen
- D. Hydrogen Discuss
- 3. Uraninite is an ore/mineral of _______.
Options- A. Zinc
- B. Uranium
- C. Titanium
- D. Aluminium Discuss
- 4. What is the chemical formula of aluminium nitride?
Options- A. AlN
- B. Al2N
- C. AlN2
- D. AlN3 Discuss
- 5. Haematite is an ore/mineral of
Options- A. Zinc
- B. Iron
- C. Lead
- D. Manganese Discuss
- 6. Which of the following is also used as a Bio fertilizer?
Options- A. Urea
- B. Ammonia
- C. Uric Acid
- D. Nitrates Discuss
- 7. ______________ is a multibranched polysaccharide of glucose that serves as a form of energy storage in animals and fungi.
Options- A. A)
- B. Glycogen
- C. Pectin
- D. Chitin Discuss
- 8. ________ is used for making vinegar.
Options- A. Tartaric acid
- B. Malic acid
- C. Oxalic acid
- D. Acetic acid Discuss
- 9. Manganite is an ore/mineral of
Options- A. Beryllium
- B. Chromium
- C. Manganese
- D. Copper Discuss
- 10. Fire extinguishers emit which gas?
Options- A. Carbon monoxide
- B. Chlorine
- C. Carbon dioxide
- D. Nitrogen Discuss
Chemistry problems
Search Results
Correct Answer: by digestion of food by animals
Correct Answer: Hydrogen
Correct Answer: Uranium
Correct Answer: AlN
Correct Answer: Iron
Correct Answer: Ammonia
Correct Answer: Glycogen
Correct Answer: Acetic acid
Correct Answer: Manganese
Correct Answer: Carbon dioxide
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