General Knowledge Questions Answer GK Quiz

GK General Knowledge - Chemistry Question Answer Quiz

Q. Arrange the following substances in chronological order of their first synthesis in lab -
1. Black gold 2. Fullerene 3. Graphene 4. Kevlar
Select correct answer from the codes given below -
Codes :

1) 1 2 3 4
2) 4 2 3 1
3) 2 4 3 1
4) 4 1 2 3

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Q. A sample of any of the following substances disappears after some-time when exposed to air like camphor, naphthalene or dry ice. This phenomenon is called -
1) Sublimation
2) Evaporation
3) Diffusion
4) Radiation

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Q. The gas, which is emitted in the paddy fields and increases the earth's temperature is -
1) Nitrogen
2) Carbon dioxide
3) Carbon monoxide
4) Methane

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Q. Which of the following is an example of herbicide?
1) Sodium chlorate
2) Potassium permanganate
3) Bleaching powder
4) None of the above

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Q. Which one of the following materials contains calcium?
1) China clay
2) Corundum
3) Gypsum
4) Talc

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Q. What is the bond order of CO group?
1) 1
2) 2.5
3) 3.5
4) 3

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Q. Natural rubber is a polymer of -
1) Isoprene
2) Styrene
3) Vinyl Acetate
4) Propene

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Q. Oxygen is absent in -
1) Kerosene
2) Glass
3) Soil
4) Cement

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Q. The main component of greenhouse gases is -
1) carbon dioxide
2) methane
3) nitrous oxide
4) None of the above/ More than one of the above

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Q. The pH value of water is -
1) 4
2) 7
3) 12
4) 18

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