Kerala PSC - Important and Expected General Science Questions - 48

1. Compounds carrying an -NH2 group are called

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2. The natural gas contains approximately - percent of ethane

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3. Which hydrocarbons are used for the artificial ripening of green fruits

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4. Which hydrocarbon gas is used in cutting and welding

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5. Which is the simplest aromatic hydrocarbon

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6. Who discovered benzene in 1825 

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7. Historically, which hydrocarbon was obtained by the destructive distillation of whale oil

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8. Which hydrocarbon is used for preventing moths in clothes

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9. Which chemical compound is stored in closed dark coloured bottles completely filled because it is oxidised by air in the presence of sunlight to an extremely poisonous gas phosgene

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10. Which hydrocarbons are the major constituents of the Liquified Petroleum Gas (LPG)

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11. Which hydrocarbon is used as a fire extinguisher 

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12. The chlorofluoro carbon compounds of methane and ethane are collectively known as

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13. Which hydrocarbon is widely used as aerosol propellants, refrigerant and air conditioner

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14. What is the fullform of DDT

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15. Who discovered the effectiveness of DDT as an insecticide

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16. Which dihydric alcohol is used as a cooling agent in aeroplanes instead of water

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17. Which trihydric alcohol is present in almost all the animal and vegeable oils and fats as glycerides

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18. What is commonly known as carbolic acid

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19. What is commercially prepared from the middle oil fraction of coal tar

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20. The 40% dilute solution of formaldehyde is known as

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More General Science Questions

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