Chemistry 1994 JAMB Past Questions

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The solubility, in moles per dm³ of 20.2 g of potassium trioxonitrate (V) dissolve in 100 g of the resulting mixture is?

(K = 39, O = 16, N =14).

A. 0.10
B. 0.20
C. 1.00
D. 2.00

View Answer & Discuss (5) JAMB 1994

Which of the following atoms represents deuterium?

A. No protons = 1, No of neutrons = 0, No of electrons = 0
B. No protons = 1, No of neutrons = 0, No of electrons = 1
C. No protons = 1, No of neutrons = 1, No of electrons = 1
D. No protons = 1, No of neutrons = 2, No of electrons = 1

View Answer & Discuss (4) JAMB 1994

A few drops of concentrated HCI are added to about 10cm3 of a solution of pH 3.4. The pH of the resulting mixtures is?

A. less than 3.4
B. greater than 3.4
C. unaltered
D. the same as that of pure water

View Answer & Discuss (5) JAMB 1994

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Which of the following compounds is a base?

A. CO₂
B. CaO
C. H₃PO₃
D. CH₃COOCH₃

View Answer & Discuss JAMB 1994

20 cm³ of a 2.0 M solution of ethanoic acid was added to excess of 0.05 M sodium hydroxide. The mass of the salt produced is?

(Na = 23, C = 12, O = 16, H = 1)

A. 2.50 g
B. 2.73 g
C. 3.28 g
D. 4.54 g

View Answer & Discuss (11) JAMB 1994

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Chemistry 1994 JAMB Past Questions

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