Year :
2000
Title :
Chemistry
Exam :
WASSCE/WAEC MAY/JUNE
Paper 1 | Objectives
41 - 45 of 45 Questions
| # | Question | Ans |
|---|---|---|
| 41. |
A plastic which cannot be softened by heat is described as A. thermosetting B. non-biodegradable C. thermoplastic D. malleable |
A |
| 42. |
Allotropes of an element differ in their A. physical properties B. chemical properties C. mass numbers D. electronic configuration |
A |
| 43. |
What is the mass number of an element if its atom contains 10 protons, 10 electrons and 12 neutrons? A. 32 B. 22 C. 20 D. 10 |
B |
| 44. |
Given that the electronic configuration of an element X is 1s22s22p63s 23p4, it can be deduced that X A. belongs to group VI in the Periodic Table B. belongs to periodic Table C. contains 3 unpaired electrons in the ground state D. has atomic number 27 |
A |
| 45. |
P,Q,R and S are metals in the same group in the Periodic Table but in periods 3,4, 5 and 6 respectively which of them loses electrons least readily? A. P B. C C. R D. S |
D |
| 41. |
A plastic which cannot be softened by heat is described as A. thermosetting B. non-biodegradable C. thermoplastic D. malleable |
A |
| 42. |
Allotropes of an element differ in their A. physical properties B. chemical properties C. mass numbers D. electronic configuration |
A |
| 43. |
What is the mass number of an element if its atom contains 10 protons, 10 electrons and 12 neutrons? A. 32 B. 22 C. 20 D. 10 |
B |
| 44. |
Given that the electronic configuration of an element X is 1s22s22p63s 23p4, it can be deduced that X A. belongs to group VI in the Periodic Table B. belongs to periodic Table C. contains 3 unpaired electrons in the ground state D. has atomic number 27 |
A |
| 45. |
P,Q,R and S are metals in the same group in the Periodic Table but in periods 3,4, 5 and 6 respectively which of them loses electrons least readily? A. P B. C C. R D. S |
D |