Chemistry · Concept of atom, molecule, element and compound
Assertion The specific charge of canal rays is not constant. Reason The mass of
Assertion The specific charge of canal rays is not constant. Reason The mass of ion varies with speed.
- A. Assertion is correct but Reason is wrong.
- B. Assertion is wrong but Reason is correct.
- C. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.
- D. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
Step-by-step solution
Canal rays are positive ions, and their specific charge (charge-to-mass ratio) varies depending on the ion, so the assertion is correct. The reason states that 'the mass of ion varies with speed,' which is incorrect because mass is invariant in classical physics; it does not change with speed. Therefore, the assertion is correct, but the reason is wrong.
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