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Chemistry Past Questions and Answers

Jamb Chemistry Questions

Question 41:

Ethene when passed into concentrated H₂SO₄ is rapidly absorbed. The product is diluted with water and then warmed to produce?

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A Ethanol
B Diethyl ether
C Ethanal
D Diethyl sulphate

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Question 42:

One advantages of detergents over soap is that detergents?

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A Are easier to maufacture
B Foam more than soap
C Form soluble salts with hard water
D Are able to deter germs more than soap

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Question 43:

A certain liquid has a high boiling point. It is viscous, non-toxic, miscible with water being very hygroscopic. This liquid is most likely to be?

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A CH₃CH₂CH₂HO
B CH₃CHOHCH₃
C CH₃CH₂CHOHCH₃
D CH₂OHCHOHCH₂OH

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Question 44:

CH₃-CH-CH₃
CH₂CI
Is known as?

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A 1-chloro-2-methylbutane
B 1-chloro-2-methylpropane
C 2-chloromethylpropane
D 1-chloro-2, 2-dimethylethane

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Question 45:

Which of the following statements is TRUE of the complete hydrolysis of a glycerine by sodium hygroxide?

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A 3 moles ofNaOH are required for each mole of glyceride
B 3 moles of glycerol are produced
C Only one mole of soap is formed
D Concentrated H₂SO₄ is essential for the completion of the reaction

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