Question
How does cathode ray differ from as anode rays?
| Cathode rays | Anode rays |
| These rays travel from the cathode to the anode. | These rays travel from the anode to the cathode. |
| They are made of negatively charged particles. | They are made of positively charged particles. |
| They produce a greenish-yellow fluorescence on a soda-glass screen. | They produce fluorescence on a zinc sulphide screen. |
| They are affected by an electric field, i.e. they are inflected towards a positive field and deflected towards a negative field. | They are deflected by electric and magnetic fields but in a direction opposite to that of cathode rays. |
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| Hydrogen | Oxygen | Carbon dioxide | Chlorine | |
| Litmus test | ||||
| Apply a burning splint to the gas | ||||
| Colour of gas | colourless | colourless | colourless | greenish-yellow |
| Odour of gas |
| Column A | Column B |
| (a) Blue salt changes to white and then black | (i) Ammonium dichromate |
| (b) Orange coloured compound changes to green. | (ii) Iodine |
| (c) Red compound changes to brown and then yellow. | (iii) Zinc Nitrate |
| (d) White to yellow when hot and white when cold. | (iv) Copper sulphate |
| (e) Violet solid changes to violet vapours. | (v) Red Lead |