of the following is a bad conductor of electricity?
  • Distilled water
  • Silver nitrate
  • Sulphuric acid
  • Copper sulphate
Which of the following does not conduct electricity?
  • Sugar solution
  • Vinegar solution
  • Lemon juice solution
  • Caustic soda solution
An electric current can produce
  • heating effect
  • chemical effect
  • magnetic effect
  • all of these
Pure or distilled water is a
  • poor conductor
  • good conductor
  • both (a) and (b)
  • none of these
Which of the following is a good conductor?
  • Brick
  • Steel
  • Plastic
  • Cotton
Polythene is
  • a conductor
  • an insulator
  • both (a) and (b)
  • none of these
Electroplating is based on
  • heating effect of electricity
  • chemical effect of electricity
  • physical effect of electricity
  • magnetic effect of electricity
Copper is
  • a good conductor
  • an insulator
  • both (a) and (b)
  • none of these
Waste from an electroplating factory must be disposed off
  • in the nearby river
  • in the nearby pond
  • in the nearby cornfield
  • according to the disposal guidelines of Waste Management Bodies
An electrolyte is
  • a metal
  • a liquid that conducts current
  • a non-metal
  • none of these
Flow of electron is called
  • electrolyte
  • electroplating
  • electrodes
  • electric current
Which is not a non-electrolyte?
  • Ethyl alcohol
  • Sodium chloride
  • Urea
  • Sodium solution
An electric lamp glows due to
  • heating effect
  • magnetic effect
  • chemical effect
  • physical effect
Electroplating prevents
  • corrosion
  • passing of current
  • dissociation
  • shining
Which of the following is not used for electroplating metal articles?
  • Nickel
  • Silver
  • Chromium
  • Sodium
Iron objects can be protected by electroplating them with
  • chromium
  • nickel
  • zinc
  • all of these
Electroplating is
  • Heating effect of current
  • Magnetic effect of current
  • Chemical effect of current
  • None of these
An electric current can produce
  • heating effect only.
  • chemical effect only.
  • magnetic effect only.
  • chemical, heating, and magnetic effects
Match the column
class8-science-chapter14-chemical-effect-of-current-mcq-1.png
  • p -> i, q -> ii, r -> i, s ->ii
  • p -> i, q -> i, r -> ii, s ->ii
  • p -> ii, q -> ii, r -> i, s ->i
  • p -> ii, q -> i, r -> ii, s ->i
On passing electricity through copper sulphate solution
  • Copper is formed at anode
  • Copper is formed at cathode
  • Oxygen is formed at anode
  • Hydrogen is formed at cathode
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