Year :
2006
Title :
Chemistry
Exam :
JAMB Exam
Paper 1 | Objectives
1 - 10 of 49 Questions
| # | Question | Ans |
|---|---|---|
| 1. |
The raw materials used for the smelting of iron ore in a furnace is A. CaSO4 B. CaCO3 C. CuSO4 D. Zn(NO3)2 |
B |
| 2. |
On heating, which of the following compounds will decompose to the free metal, nitrogen (IV) oxide and oxygen? A. Ca(NO3)2 B. Cu(NO3)2 C. AgNO3 D. NaNO3 Detailed SolutionAgNO3 → 2Ag + O2 + 2NO2 |
|
| 3. |
The group IA metals are not found free in nature because they A. are very reactive and unstable B. are malleable and ductile C. have high melting and boiling point D. conduct heat and electricity |
A |
| 4. |
Carbon exist naturally in the combined state as A. graphite B. coal C. diamond D. wood |
D |
| 5. |
The efficiency of a solid catalyst to increase reaction rates depends on its A. surface area B. solubility C. concentration D. quantity |
A |
| 6. |
Dynamic equilibrium describes a situation where A. a reaction gives back the reactant B. te concentration of the reactant and products is equal C. both forward and and reverse reactions proceed at the same rate D. reactants are converted to products |
C |
| 7. |
The ion that will give a white precipitate with aqueous NaOH and soluble in excess of the base is A. Ca2+ B. Mg2+ C. Zn2+ D. Cu2+ |
C |
| 8. |
Which of the following pairs of substance will react further with oxygen to form a higher oxide? A. CO2 and H2O B. NO and H2O C. CO and CO2 D. SO2 and NO |
D |
| 9. |
The characteristic colour of the flame shown when a copper sail moistened with concentrated hydrochloric acid on a platinum wire is put on bunsen burner is A. lilac B. green C. yellow D. brick-red |
B |
| 10. |
In the industrial production of H2 from natural gas the CO2 produced along with the H2 is removed by A. washing under pressure B. drying over phosphorus (V) oxide C. passing the mixture into lime water D. using ammonical copper (I) chloride |
A |
| 1. |
The raw materials used for the smelting of iron ore in a furnace is A. CaSO4 B. CaCO3 C. CuSO4 D. Zn(NO3)2 |
B |
| 2. |
On heating, which of the following compounds will decompose to the free metal, nitrogen (IV) oxide and oxygen? A. Ca(NO3)2 B. Cu(NO3)2 C. AgNO3 D. NaNO3 Detailed SolutionAgNO3 → 2Ag + O2 + 2NO2 |
|
| 3. |
The group IA metals are not found free in nature because they A. are very reactive and unstable B. are malleable and ductile C. have high melting and boiling point D. conduct heat and electricity |
A |
| 4. |
Carbon exist naturally in the combined state as A. graphite B. coal C. diamond D. wood |
D |
| 5. |
The efficiency of a solid catalyst to increase reaction rates depends on its A. surface area B. solubility C. concentration D. quantity |
A |
| 6. |
Dynamic equilibrium describes a situation where A. a reaction gives back the reactant B. te concentration of the reactant and products is equal C. both forward and and reverse reactions proceed at the same rate D. reactants are converted to products |
C |
| 7. |
The ion that will give a white precipitate with aqueous NaOH and soluble in excess of the base is A. Ca2+ B. Mg2+ C. Zn2+ D. Cu2+ |
C |
| 8. |
Which of the following pairs of substance will react further with oxygen to form a higher oxide? A. CO2 and H2O B. NO and H2O C. CO and CO2 D. SO2 and NO |
D |
| 9. |
The characteristic colour of the flame shown when a copper sail moistened with concentrated hydrochloric acid on a platinum wire is put on bunsen burner is A. lilac B. green C. yellow D. brick-red |
B |
| 10. |
In the industrial production of H2 from natural gas the CO2 produced along with the H2 is removed by A. washing under pressure B. drying over phosphorus (V) oxide C. passing the mixture into lime water D. using ammonical copper (I) chloride |
A |