Class VIII

The whole apparatus of electrodes, electrolytes and vessel containing them is called _____
  1. thermometer
  2. electrometer
  3. voltameter
  4. ammeter
Distilled water is
  1. Poor conductor
  2. Good conductor
  3. Both (a) and (b)
  4. none
The liquid will conduct electric current in a circuit when the vessel is filled with _________.
  1. distilled water
  2. salt solution
  3. air
  4. helium
In a LED, the longer lead/leg is connected to ____________
  1. positive terminal of the battery
  2. negative terminal of the battery
  3. either positive of negative terminal of the battery
  4. none of these
Electroplating prevents
  1. Current
  2. Chemical effect
  3. Rusting
  4. All
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