Year :
2017
Title :
Chemistry
Exam :
JAMB Exam
Paper 1 | Objectives
1 - 10 of 49 Questions
| # | Question | Ans |
|---|---|---|
| 1. |
The general formula of alkanones is A. RCHO B. RCOR' C. RCOOH D. RCOOR Detailed SolutionAlkanones also known as ketones have the general formula RCOR'There is an explanation video available below. |
|
| 2. |
The constituent common to duralumin and alnico is A. Co B. Mn C. Al D. Mg |
|
| 3. |
The shape of the S-orbital is A. elliptical B. spiral C. circular D. spherical |
|
| 4. |
Aluminium hydroxide is used in the dyeing industry as a A. dye B. dispersant C. salt D. mordant |
|
| 5. |
The tincture of iodine means iodine dissolved in A. ethanol B. bromine chloride C. chlorine water D. water |
|
| 6. |
Temporary hard water is formed when rain water containing dissolved carbon(IV) oxide flows over deposits of A. CaCO3 B. Na2CO3 C. Na2SO4 D. CaSO4 |
|
| 7. |
The acid anhydride that will produce weak acid in water is A. SO3 B. NO2 C. SO2 D. CO2 |
|
| 8. |
The process that occurs when two equivalent forms of a compound are in equilibrium is A. Isotopy B. Resonance C. Isomerism D. Reforming |
|
| 9. |
In the laboratory preparation of ethyl ethanoate, the water present in the mixture is removed using ? A. Anhydrous CaCl2 B. concentrated NaCO4 C. dilute NaOH D. concentrated H2SO4 Detailed SolutionTo purify the distillate of impurities like unreacted ethanol, acids, water and ethoxyethane.Adding anhydrous calcium chloride and leave it to stand for a day to remove any water present in the mixture. There is an explanation video available below. |
|
| 10. |
The constituent of air necessary in the rusting process are A. O2 and H2O B. Ar and CO2 C. CO2 and H2O D. O2 and CO2 Detailed SolutionRust is an iron oxide, a usually red oxide formed by the redox reaction of iron and oxygen in the presence of water or air moisture.There is an explanation video available below. |
| 1. |
The general formula of alkanones is A. RCHO B. RCOR' C. RCOOH D. RCOOR Detailed SolutionAlkanones also known as ketones have the general formula RCOR'There is an explanation video available below. |
|
| 2. |
The constituent common to duralumin and alnico is A. Co B. Mn C. Al D. Mg |
|
| 3. |
The shape of the S-orbital is A. elliptical B. spiral C. circular D. spherical |
|
| 4. |
Aluminium hydroxide is used in the dyeing industry as a A. dye B. dispersant C. salt D. mordant |
|
| 5. |
The tincture of iodine means iodine dissolved in A. ethanol B. bromine chloride C. chlorine water D. water |
| 6. |
Temporary hard water is formed when rain water containing dissolved carbon(IV) oxide flows over deposits of A. CaCO3 B. Na2CO3 C. Na2SO4 D. CaSO4 |
|
| 7. |
The acid anhydride that will produce weak acid in water is A. SO3 B. NO2 C. SO2 D. CO2 |
|
| 8. |
The process that occurs when two equivalent forms of a compound are in equilibrium is A. Isotopy B. Resonance C. Isomerism D. Reforming |
|
| 9. |
In the laboratory preparation of ethyl ethanoate, the water present in the mixture is removed using ? A. Anhydrous CaCl2 B. concentrated NaCO4 C. dilute NaOH D. concentrated H2SO4 Detailed SolutionTo purify the distillate of impurities like unreacted ethanol, acids, water and ethoxyethane.Adding anhydrous calcium chloride and leave it to stand for a day to remove any water present in the mixture. There is an explanation video available below. |
|
| 10. |
The constituent of air necessary in the rusting process are A. O2 and H2O B. Ar and CO2 C. CO2 and H2O D. O2 and CO2 Detailed SolutionRust is an iron oxide, a usually red oxide formed by the redox reaction of iron and oxygen in the presence of water or air moisture.There is an explanation video available below. |