Jamb Chemistry 2002 Past Questions and Answers

Question 36:

• JAMB 2002

Hydrogen is readily released when dilute hydrochloric acid reacts with

A. Cu
B. Na
C. Au
D. Ag

Question 37:

• JAMB 2002

The intermediate product formed when ethanol is progressively oxidized to ethanoic acid with potassium heptaoxodichromate (IV) is

A. Butanal
B. Ethanal
C. Methanal
D. Propanal

Question 38:

• JAMB 2002

A rock sample was added to cold dilute HNO₃. The gas evolved was passed into a solution of acidified K₂Cr₂O₇ and the solution turned green. The sample contains

A. Cl^-
B. NO₃^-
C. SO₃^2-
D. SO₄^2-

Question 39:

• JAMB 2002

Which of the following statement is true of a proton?

A. The mass of a proton is 1840 times the mass of electron
B. The total mass of the protons in a particular nucleus is always half the nuclear size
C. The mass of a proton is one - twelfth the molar mass of carbon
D. The mass of a proton is 1.0008g

Question 40:

• JAMB 2002

Which of the following chloride would exhibit the least ionic character?

A. MgCl₂
B. CaCl₂
C. LiCl
D. AlCl₃