Year :
2015
Title :
Chemistry
Exam :
JAMB Exam
Paper 1 | Objectives
61 - 64 of 64 Questions
| # | Question | Ans |
|---|---|---|
| 61. |
The oxidation state of sulphur on H2SO4 acid is A. -4 B. +6 C. 4 D. -8 Detailed SolutionIn SO4. The state of oxygen oxidation number is -2. Options A,C,D do not belong to the oxidation state in SO4There is an explanation video available below. |
|
| 62. |
In the electrolysis of brine the anode is A. platinum B. copper C. zinc D. carbon |
|
| 63. |
Calculate the relative molecular mass of Limestone CaCO3, (Ca = 40, C =12, O = 16) A. 56 B. 100 C. 76 D. 90 |
|
| 64. |
When steam is passed over red hot carbon the substances produced are A. hydrogen and trioxocarbonate (IV) acid B. hydrogen, oxygen and carbon (IV) oxide C. hydrogen and carbon (ii) oxide D. hydrogen and carbon (IV) oxide Detailed SolutionHydrogen and carbon (ii) oxide will be formed when red steam is passed ever red-hot carbon. Option A,B,D are not produced through this processThere is an explanation video available below. |
| 61. |
The oxidation state of sulphur on H2SO4 acid is A. -4 B. +6 C. 4 D. -8 Detailed SolutionIn SO4. The state of oxygen oxidation number is -2. Options A,C,D do not belong to the oxidation state in SO4There is an explanation video available below. |
|
| 62. |
In the electrolysis of brine the anode is A. platinum B. copper C. zinc D. carbon |
| 63. |
Calculate the relative molecular mass of Limestone CaCO3, (Ca = 40, C =12, O = 16) A. 56 B. 100 C. 76 D. 90 |
|
| 64. |
When steam is passed over red hot carbon the substances produced are A. hydrogen and trioxocarbonate (IV) acid B. hydrogen, oxygen and carbon (IV) oxide C. hydrogen and carbon (ii) oxide D. hydrogen and carbon (IV) oxide Detailed SolutionHydrogen and carbon (ii) oxide will be formed when red steam is passed ever red-hot carbon. Option A,B,D are not produced through this processThere is an explanation video available below. |