General Science | Chemistry | Carbon and its Various Forms

General Science | Chemistry | Carbon and its Various Forms

Jan 27, 2025 - 16:22 Updated: Jan 27, 2025 - 16:29
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1. Which of the following is made up of Carbon only?

Kevlar
Lexan
Graphene
Spider silk

2. Which of these is not an additional form of Carbon?

Diamond
Graphite
Oxocarbon
Fullerenes

3. Which one of the following elements forms the maximum number of compounds?

Hydrogen
Carbon
Nitrogen
Oxygen

4. Which of the following do not consist carbon?

Diamond
Graphite
Coal
None of these

5. Pencil lead is

Graphite
Charcoal
Lamp black
Coal

6. Third allotrope of Carbon was discovered three scientists, who were awarded the Nobel Prize for Chemistry. Find out who was not on that team.

H.W. Kroto
R.F. Curl
R.E. Smalley
Faimen

7. Which of the following do not contain carbon?

Diamond
Graphite
Coal
Sand

8. Which of these consists carbon?

Lignite
Tin
Silver
Iron

9. Which one of the following types of coal contains a higher percentage of Carbon than the rest type of?

Bituminous coal
Lignite
Peat
Anthracite

10. The highest amount of carbon is in

Pig Iron
Wrought Iron
Steel
Alloy Steel

11. Which of the following is not in the form of crystal?

Diamond
Quartz
Sulphur
Graphite

12. For the ceiling of diamonds, the unit of weight is carat. One carat is equal to

100 mg
200 mg
300 mg
400 mg

13. Which one of the following materials is strongest?

German Silver
Brass
Steel
Graphene

14. Which lubricant is used for heavy machines?

Bauxite
Phosphorus
Graphite
Silicon oil

15. Chemically Dry Ice is

Solid sulphur
Ice made from distilled water
Mixture of ice and common salt
Solid carbon dioxide

16. Which one of the following non- metals is not a poor conductor of electricity?

Sulphur
Selenium
Bromine
Phosphorus