Jamb 2001 Chemistry Past Questions And Answers
1
Catalytic hydrogenation of benzene produces
- A. Oil
- B. Cyclohexene
- C. Cyclohexane
- D. Margarine
2
A trihydric alkanol is
- A. Glycerol
- B. Phenol
- C. Glycol
- D. Ethanol
3
A burning candle produces water and
- A. Carbon (II) oxide
- B. Carbon (IV) oxide
- C. Oxygen
- D. Hydrogen
4
Millikan's contributions to the development of atomic theory is the determination of
- A. charge on electron
- B. positive rays
- C. charge to mass ratio
- D. cathode rays
5
When chlorine Is passed into water and the resulting solution exposed to sunlight, the product formed are
- A. Chlorine gas and hydrogen
- B. Oxygen and oxochlorate (I) acid
- C. Chlorine gas and oxochlorate (I) acid
- D. Hydrochloric acid and oxygen
6
What mass of water is produced when 8.0g of hydrogen reacts with excess oxygen? [H = 1, O = 16]
- A. 36.0g
- B. 8.0g
- C. 72.0g
- D. 16.0g
7
A characteristic reaction of the compounds with the general formula CnH2n is
- A. Esterification
- B. Polymerization
- C. Decarboxylation
- D. Substitution
8
NH3(g) + HCl(g) → NH4Cl(s) The entropy change in the system above is
- A. negative
- B. indeterminate
- C. positive
- D. zero
9
What is the decrease in volume of air when pyrogallol is shaken with 30.00cm3 of air ?
- A. 15.00cm3
- B. 6.30cm3
- C. 0.63cm3
- D. 0.06cm3
10
Proteins in acid solution undergo
- A. Polymerization
- B. Substitution
- C. Fermentation
- D. Hydrolysis

