Year :
2009
Title :
Chemistry
Exam :
WASSCE/WAEC MAY/JUNE
Paper 1 | Objectives
41 - 50 of 53 Questions
| # | Question | Ans |
|---|---|---|
| 41. |
When protein is heated to a high temperature it undergoes A. condensation B. denaturation C. hydrolysis D. polymerization |
B |
| 42. |
What is the molecular formula of a compound with empirical CH2O and vapour density of 90? [H = 1, C = 12, O = 16] A. C4H8O 2 B. C4H 8O3 C. C6H10C5 D. C6H12O6 |
D |
| 43. |
What is the product of the reaction between propene and 1 mole of hydrogen iodide? A. CH3CHICH3 B. CH 3CH2CHI2 C. CH 3CH 2CI3 D. CH 3CHICH2I |
A |
| 44. |
Ethanol reacts with excess acidified K2Cr 2O7 to produce A. ethanal B. ethane C. ethanoic acid D. ethylethanoate |
C |
| 45. |
Dry hydrogen chloride when dissolved in methylbenzene A. turns blue litmus paper red B. turns red litmus paper blue C. does not affect litmus paper D. bleaches litmus paper |
C |
| 46. |
A consequence of global warming is A. air pollution B. flooding C. increased humidity D. low rainfall |
B |
| 47. |
The major product in the solvay process is A. NaOH B. Na 2CO 3 C. NH 3 D. H 2SO4 |
B |
| 48. |
Which of the following alloys does not contain copper? l. Brass II. Bronze III. Steel A. l only B. ll only C. lll only D. ll and lll only |
C |
| 49. |
The electron configuration of carbon atom in its excited state is [ 6C] A. 1s22s 22px12py 1 B. 1s 2 2s 22px 22pyo C. 1s12s22px12py12pz1 D. 1s 22s12px12py12pz1 |
D |
| 50. |
The electron configuration of carbon atom in its excited state is [ 6C] A. 1s22s 22px12py 1 B. 1s 2 2s 22px 22pyo C. 1s12s22px12py12pz1 D. 1s 22s12px12py12pz1 |
D |
| 41. |
When protein is heated to a high temperature it undergoes A. condensation B. denaturation C. hydrolysis D. polymerization |
B |
| 42. |
What is the molecular formula of a compound with empirical CH2O and vapour density of 90? [H = 1, C = 12, O = 16] A. C4H8O 2 B. C4H 8O3 C. C6H10C5 D. C6H12O6 |
D |
| 43. |
What is the product of the reaction between propene and 1 mole of hydrogen iodide? A. CH3CHICH3 B. CH 3CH2CHI2 C. CH 3CH 2CI3 D. CH 3CHICH2I |
A |
| 44. |
Ethanol reacts with excess acidified K2Cr 2O7 to produce A. ethanal B. ethane C. ethanoic acid D. ethylethanoate |
C |
| 45. |
Dry hydrogen chloride when dissolved in methylbenzene A. turns blue litmus paper red B. turns red litmus paper blue C. does not affect litmus paper D. bleaches litmus paper |
C |
| 46. |
A consequence of global warming is A. air pollution B. flooding C. increased humidity D. low rainfall |
B |
| 47. |
The major product in the solvay process is A. NaOH B. Na 2CO 3 C. NH 3 D. H 2SO4 |
B |
| 48. |
Which of the following alloys does not contain copper? l. Brass II. Bronze III. Steel A. l only B. ll only C. lll only D. ll and lll only |
C |
| 49. |
The electron configuration of carbon atom in its excited state is [ 6C] A. 1s22s 22px12py 1 B. 1s 2 2s 22px 22pyo C. 1s12s22px12py12pz1 D. 1s 22s12px12py12pz1 |
D |
| 50. |
The electron configuration of carbon atom in its excited state is [ 6C] A. 1s22s 22px12py 1 B. 1s 2 2s 22px 22pyo C. 1s12s22px12py12pz1 D. 1s 22s12px12py12pz1 |
D |