Jamb Chemistry Past Questions and Answers

Question 716:

• JAMB 1991

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?

A. CH₃CH₂CH₂HO
B. CH₃CHOHCH₃
C. CH₃CH₂CHOHCH₃
D. CH₂OHCHOHCH₂OH

Question 717:

• JAMB 1991

CH₃-CH-CH₃
CH₂CI
Is known as?

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

Question 718:

• JAMB 1991

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

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

Question 719:

• JAMB 1991

Which of the following are the products of the reaction between CH₃COOH and CI₂ in sunlight?

A. CICH₂COOH + HCI
B. CH₃COCI + HOCI
C. CH₃COOCI + HCI
D. CH₃COCI + HO₂

Question 720:

• JAMB 1991

Which of these is an acid salt?

A. K₂SO_4-.AI₂(SO₄)₃.24H₂O
B. CuCO₃.Cu(OH)₂
C. NaHS
D. CaOCI_2-