Chemistry · Atomic Structure
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Which gas in the discharge tube produces lightest canal ray particles?
- A
Ar
- B
He
- C
H2
- D
Ne
Canal rays are positively charged ions that are produced in a discharge tube when a high voltage is applied across a gas at low pressure. These rays are defected by electric and magnetic fields, and their deflection depends on their charge-to-mass ratio. Hydrogen has the lowest atomic mass compared to Ar, Me, and He. Since, the mass-to-charge ratio determines the deflection of canal rays, the lighter the particles, the greater their deflection. Therefore, H2 produces the lightest canal ray particles among the given options.
Tagged under Chemistry · Atomic Structure · 2022