Year :
2016
Title :
Chemistry
Exam :
WASSCE/WAEC MAY/JUNE
Paper 1 | Objectives
11 - 20 of 50 Questions
| # | Question | Ans |
|---|---|---|
| 11. |
Which of the following arrangements shows increasing order of reactivity of the halogens? A. F2 > Cl2 > Br2 >I2 B. I2 < Br2 < Cl2 C. F2 < Cl2 < Br2 D. I2 > Br2 > Cl2 > F2 |
B |
| 12. |
The shape of the water molecule is_______? A. Linear B. Pyramidal C. Tetrahedral D. V-shaped Detailed SolutionThe bond angle in water is compressed approximately to 105°, such that the structure of the water molecule is V-shaped or Angular. |
|
| 13. |
Which of the following elements would produce coloured ion in agueous solution? A. Calcuim B. Copper C. Magnesuim D. Sodium |
B |
| 14. |
The minimum amount of energy required for effective collisions between reacting particles is known as A. Activation energy B. Bond energy C. Kinetic energy D. Potential energy |
A |
| 15. |
The bond formed between H2O and H+ to form the hydroxonium H3O+ is A. Dative B. Covalent C. Electrovalent D. Ionic |
A |
| 16. |
An element X froms the following oxides X2O, XO and XO2. This phenomenon illustrates the law of________? A. Conservation of mass B. Definite proportion C. Mass action D. Multiple proportion |
D |
| 17. |
How many moles of oxygen would contain 1.204 x 1024 molecules? A. 1 B. 2 C. 3 D. 4 Detailed Solution6.02 x 1023 molecules is 1mole1.204 x 1024 molecules will be...... \(\frac{1.204 \times 10^24 \times 1}{6.02 \times 10^23}\) \(\frac{1.204 \times 10}{6.02}\) = \(\frac{12.04}{6.02}\) = 2moles |
|
| 18. |
Which of the following statements about solids is correct? A. Solid particles are less orderly than those of a liquid B. Solid have lower densities than liquids C. Solid particles have greater kinetic energies than those of liquids D. Solid particles cannot be easily compressed |
D |
| 19. |
Which of the following apparatus can be used to measure a specific volume of a liquid accurately? A. Beaker B. Conical flask C. Measuring cyclinder D. Pipette |
D |
| 20. |
The general gas equation \(\frac{PV}{T}\) = K is a combination of A. Boyle's and Charles' laws B. Boyle's and Graham's laws C. Charles' and Graham's laws D. Dalton's and Graham's laws |
A |
| 11. |
Which of the following arrangements shows increasing order of reactivity of the halogens? A. F2 > Cl2 > Br2 >I2 B. I2 < Br2 < Cl2 C. F2 < Cl2 < Br2 D. I2 > Br2 > Cl2 > F2 |
B |
| 12. |
The shape of the water molecule is_______? A. Linear B. Pyramidal C. Tetrahedral D. V-shaped Detailed SolutionThe bond angle in water is compressed approximately to 105°, such that the structure of the water molecule is V-shaped or Angular. |
|
| 13. |
Which of the following elements would produce coloured ion in agueous solution? A. Calcuim B. Copper C. Magnesuim D. Sodium |
B |
| 14. |
The minimum amount of energy required for effective collisions between reacting particles is known as A. Activation energy B. Bond energy C. Kinetic energy D. Potential energy |
A |
| 15. |
The bond formed between H2O and H+ to form the hydroxonium H3O+ is A. Dative B. Covalent C. Electrovalent D. Ionic |
A |
| 16. |
An element X froms the following oxides X2O, XO and XO2. This phenomenon illustrates the law of________? A. Conservation of mass B. Definite proportion C. Mass action D. Multiple proportion |
D |
| 17. |
How many moles of oxygen would contain 1.204 x 1024 molecules? A. 1 B. 2 C. 3 D. 4 Detailed Solution6.02 x 1023 molecules is 1mole1.204 x 1024 molecules will be...... \(\frac{1.204 \times 10^24 \times 1}{6.02 \times 10^23}\) \(\frac{1.204 \times 10}{6.02}\) = \(\frac{12.04}{6.02}\) = 2moles |
|
| 18. |
Which of the following statements about solids is correct? A. Solid particles are less orderly than those of a liquid B. Solid have lower densities than liquids C. Solid particles have greater kinetic energies than those of liquids D. Solid particles cannot be easily compressed |
D |
| 19. |
Which of the following apparatus can be used to measure a specific volume of a liquid accurately? A. Beaker B. Conical flask C. Measuring cyclinder D. Pipette |
D |
| 20. |
The general gas equation \(\frac{PV}{T}\) = K is a combination of A. Boyle's and Charles' laws B. Boyle's and Graham's laws C. Charles' and Graham's laws D. Dalton's and Graham's laws |
A |