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Question
Match the following.
| Law of conservation of mass | Sir William Crookes |
| Law of constant proportion | James Chadwick |
| Cathode rays | Joseph Proust |
| Anode rays | Lavoisier |
| Neutrons | Goldstein |
Solution
| Law of conservation of mass | Lavoisier |
| Law of constant proportion | Joseph Proust |
| Cathode rays | Sir William Crookes |
| Anode rays | Goldstein |
| Neutrons | James Chadwick |
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