Jamb Chemistry Past Questions and Answers

Question 711:

• JAMB 1991

Copper (II) tetraoxosulphate (IV) is widely used as a?

A. Fertilizer
B. Fungicide
C. Disinfectant
D. Purifier

Question 712:

• JAMB 1991

Which of the following compounds can exist as geometric isomers?

A. 2-methylbut-2ene
B. But-2-ene
C. But-1-ene
D. CI-C-Br

Question 713:

• JAMB 1991

How many grams of bromine will be required to completely react with 10 g of propyne?
(C = 12, H = 1, Br = 80)

A. 20 g
B. 40 g
C. 60 g
D. 80 g

Question 714:

• JAMB 1991

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

A. Ethanol
B. Diethyl ether
C. Ethanal
D. Diethyl sulphate

Question 715:

• JAMB 1991

One advantages of detergents over soap is that detergents?

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