Question

solution of sulphuric acid conducts electricity whereas that of alcohol does not. why?

Answer 1

ACTIVITY-

As shown in figure insert two nails on the wooden or rubber cork and place it in a beaker. Now connect these iron nails with a bulb, a 6 volt battery and a switch using a wire. Now pour some alcohol or glucose such that the nails will dip into it. Now turn the switch on, you will see that the bulb will not glow. Now empty the beaker and add some H2SO4 aqueous solution at this time the bulb will glow. This proves that an acid can conduct electricity while alcohols and glucose cannot, even when they are containing hydrogen.

ANSWER-

When acid is dissolved with water it ionises to give off hydogen ions whereas in alcohols it does not ionises in water to give off hydrogen ions.

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Answer 2

sulphuric acid when dissolve in water ionized to a hydronium ion (H30+)and Hso4- ion. The ion are then free to move toward the oppositely charged electrodes so they can conduct the charges to those electrodes.