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Chemistry CBSE Live product
Class 9 (2025-26)
Structure of the atom
Annual Revision I - Structure of the atom
1.
Cathode and canal rays
Question:
1
m.
Choose the correct answer:
Assertion (A):
The discovery of cathode rays led to the discovery of the electron.
Reason (R):
Cathode rays are beams of neutral particles found in every atom.
A is false but R is true
Both A and R are true but R is not the correct explanation of A
A is true but R is false
Both A and R are true and R is correct explanation of A
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