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- Question
Acid rain is caused due to pollution of atmosphere by
Options- A. oxides of nitrogen and sulphur
- B. oxides of nitrogen and phosphorous
- C. oxides of carbon and nitrogen
- D. oxides of nitrogen and methane
- Correct Answer
- oxides of carbon and nitrogen
- 1. Which metal is responsible for Itai-Itai disease?
Options- A. Cadmium
- B. Nickel
- C. Chromium
- D. Mercury Discuss
- 2. Which among the following is an example of solid sol?
Options- A. Milk of magnesia
- B. Foam
- C. Coloured gemstones
- D. Rubber Discuss
- 3. How many elements are present in the group of the 18th Modem Periodic Table?
Options- A. 5
- B. 2
- C. 6
- D. 7 Discuss
- 4. ........... is not a sub atomic particle of an atom.
Options- A. Neutron
- B. Electron
- C. Xenon
- D. Proton Discuss
- 5. ......... is a deliquescent compound.
Options- A. Quick lime
- B. Sulphuric acid
- C. Phosphorous pentoxide
- D. Magnesium chloride Discuss
- 6. The most extensive use of molasses after fermentation is for producing
Options- A. Methanol
- B. Sugar
- C. Ethanol
- D. Sugarcane Discuss
- 7. Zeolite is
Options- A. hydrated ferric oxide
- B. hydrated sodium aluminium silicate
- C. sodium hexameta phosphate
- D. sodium tetra borate Discuss
- 8. Which one of the following is an insulator?
Options- A. copper
- B. wood
- C. mercury
- D. aluminium Discuss
- 9. Which of the following compounds from nitrites with nitrous acid?
Options- A. Primary amines
- B. Secondary amines
- C. Tertiary amines
- D. All of these Discuss
- 10. Which one of the followingis notan allotrope of carbon?
Options- A. Coal
- B. Diamond
- C. Graphite
- D. Graphene Discuss
Chemistry problems
Search Results
Correct Answer: Cadmium
Correct Answer: Coloured gemstones
Correct Answer: 7
Correct Answer: Xenon
Correct Answer: Magnesium chloride
Correct Answer: Ethanol
Correct Answer: hydrated sodium aluminium silicate
Correct Answer: wood
Correct Answer: All of these
Explanation:
The acid and the nitrite form nitrous acid which then reacts with the amine.
Correct Answer: Coal
Explanation:
Allotropy is the property of some chemical elements to exist in two or more different forms, or allotropes, when found in nature. There are several allotropes of carbon like diamond, graphite, graphene, fullerene, etc.Coal is not an allotrope of carbon because it is not 100% carbon. It contains lot of silica, sulphur and other compounds of carbon apart from carbon.
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