Year :
2018
Title :
Chemistry
Exam :
JAMB Exam
Paper 1 | Objectives
1 - 10 of 87 Questions
| # | Question | Ans |
|---|---|---|
| 1. |
A given amount of gas occupies 10.0dm\(^3\) at 4atm and 273°C. The number of moles of the gas present is?[Molar volume of gas at s.t.p = 22.4dm\(^3\)] A. 0.89 mol B. 1.90 mol C. 3.80 mol D. 5.70 mol |
|
| 2. |
According to Charles' law, the volume of a gas becomes zero at A. 0°C B. -100°C C. -273°C D. -373°C |
|
| 3. |
A substance that is used as a ripening agent for fruits is A. ethene B. propane C. methane D. butane |
|
| 4. |
The Sulphide which is insoluble in dilute hydrochloric acid is A. FeS B. CuS C. ZnS D. Na2S Detailed SolutionSulphides like PbS (lead (II) sulphide) and CuS (copper (II) sulphide) are insoluble in acidified solutions.There is an explanation video available below. |
|
| 5. |
What is the PH of 0.00 1 moldm\(^3\) solution of the sodium hydroxide A. 14 B. 13 C. 12 D. 11 |
|
| 6. |
The type of bonding in [Cu(NH\(_3\))\(^4\)]\(^{2+}\) is A. coordinate B. electrovalent C. metallic D. covalent |
|
| 7. |
Which of the following is an example of a chemical change? A. dissolution of salt in water B. rusting of iron C. melting of ice D. separating a mixture by distillation |
|
| 8. |
To what temperature must a gas at 273k be heated in order to double both its volume and pressure? A. 298K B. 546K C. 819K D. 1092K |
|
| 9. |
According to the Kinetic Theory an increase in temperature causes the kinetic energy of particles to A. decrease B. increase C. be zero D. remain constant Detailed SolutionAccording to the kinetic theory of gases, when a substance is heated, the average kinetic energy of its molecules increases and this leads to a rise in temperature.There is an explanation video available below. |
|
| 10. |
An element used in the production of matches is A. nitrogen B. aluminium C. copper D. sulphur |
| 1. |
A given amount of gas occupies 10.0dm\(^3\) at 4atm and 273°C. The number of moles of the gas present is?[Molar volume of gas at s.t.p = 22.4dm\(^3\)] A. 0.89 mol B. 1.90 mol C. 3.80 mol D. 5.70 mol |
|
| 2. |
According to Charles' law, the volume of a gas becomes zero at A. 0°C B. -100°C C. -273°C D. -373°C |
|
| 3. |
A substance that is used as a ripening agent for fruits is A. ethene B. propane C. methane D. butane |
|
| 4. |
The Sulphide which is insoluble in dilute hydrochloric acid is A. FeS B. CuS C. ZnS D. Na2S Detailed SolutionSulphides like PbS (lead (II) sulphide) and CuS (copper (II) sulphide) are insoluble in acidified solutions.There is an explanation video available below. |
|
| 5. |
What is the PH of 0.00 1 moldm\(^3\) solution of the sodium hydroxide A. 14 B. 13 C. 12 D. 11 |
| 6. |
The type of bonding in [Cu(NH\(_3\))\(^4\)]\(^{2+}\) is A. coordinate B. electrovalent C. metallic D. covalent |
|
| 7. |
Which of the following is an example of a chemical change? A. dissolution of salt in water B. rusting of iron C. melting of ice D. separating a mixture by distillation |
|
| 8. |
To what temperature must a gas at 273k be heated in order to double both its volume and pressure? A. 298K B. 546K C. 819K D. 1092K |
|
| 9. |
According to the Kinetic Theory an increase in temperature causes the kinetic energy of particles to A. decrease B. increase C. be zero D. remain constant Detailed SolutionAccording to the kinetic theory of gases, when a substance is heated, the average kinetic energy of its molecules increases and this leads to a rise in temperature.There is an explanation video available below. |
|
| 10. |
An element used in the production of matches is A. nitrogen B. aluminium C. copper D. sulphur |