Question 14 Marks
| 1. | Crooke’s tube | (a) | Negatively charged particles |
| 2. | Cathode rays | (b) | Cathode ray tube |
| 3. | Proton | (c) | Positively charged particles |
| 4. | Anode rays | (d) | $1.6 \times 10^{-24} g$ |
Answer
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3 questions · timed · auto-graded
| 1. | Crooke’s tube | (a) | Negatively charged particles |
| 2. | Cathode rays | (b) | Cathode ray tube |
| 3. | Proton | (c) | Positively charged particles |
| 4. | Anode rays | (d) | $1.6 \times 10^{-24} g$ |
| 1. | J.J. Thomson | (a) | Law of definite proportions |
| 2. | Air | (b) | Law of indestructibility of mass |
| 3. | Hydrogen ion | (c) | Poor conductor of electricity |
| 4. | Law of constant proportions | (d) | Plum pudding model |
| 5. | Law of conservation of mass | (e) | $H^+$ |
| Law of conservation of mass | Sir William Crookes |
| Law of constant proportion | James Chadwick |
| Cathode rays | Joseph Proust |
| Anode rays | Lavoisier |
| Neutrons | Goldstein |
| Law of conservation of mass | Lavoisier |
| Law of constant proportion | Joseph Proust |
| Cathode rays | Sir William Crookes |
| Anode rays | Goldstein |
| Neutrons | James Chadwick |