To carry out the so-called electrolysis of water, sulphuric acid is added to water. How does the addition of sulphuric acid produce a conducting solution ?

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Solution

When sulphuric acid is added to water, water molecules get dissociated into $H^{+}$ and $O H^{-}$ ions which conducts electricity. That's how addition of sulphuric acid to water make it a conduction solution.

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Q. (a) To carry out the so-called "electrolysis of water", sulphuric acid is added to water.
How does the addition of sulphuric acid produce a conducting solution?
(b) Copy and complete the following sentence:
With platinum electrodes, hydrogen is liberated at the ________ and oxygen at the ________ during the electrolysis of acidified water.

Q. The addition of sulphuric acid to water during electrolysis of water produces :

Q. Assertion :The electrolysis of acidified water is considered to be an example of catalysis. Reason: An addition of acid like sulphuric acid makes it an electrolyte. In the presence of

H^{+}

and ions

S O_{4}^{- 2}

, water becomes capable of dissociation. Sulphuric acid does not take part in the reaction but promotes the reaction or increases the rate of the reaction.

Why concentrated sulphuric acid is added to water and not the water to concentrated sulphuric acid

What would you observe in the following cases?
(i) Sulphur trioxide is dissolved in water on a large scale.
(ii) Concentrated sulphuric acid is added to equal volumes of cold water.
(iii) 100 ml of 98% sulphuric acid is kept open.
(iv) Hot concentrated sulphuric acid is added to sodium chloride crystals.
(v) Dilute sulphuric acid is added to ferrous sulphate solution.

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To carry out the so-called electrolysis of water, sulphuric acid is added to water. How does the addition of sulphuric acid produce a conducting solution ?

When sulphuric acid is added to water, water molecules get dissociated into H+ and OH− ions which conducts electricity. That's how addition of sulphuric acid to water make it a conduction solution.

When sulphuric acid is added to water, water molecules get dissociated into $H^{+}$ and $O H^{-}$ ions which conducts electricity. That's how addition of sulphuric acid to water make it a conduction solution.