Question

9. The components of water can be separated by
(a) Physical methods
(b) Chemical methods
(c) Both
(d) They can't be separated​

Answer 1

Answer:(d) they cannot be separated

Explanation:

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Answer 2

Required Answer:-

Water is an compound which means the components are mixed with each in fixed proportion. The elements of a compound are not easily separated through general physical methods.

Hence, components of water can be separated by:

• (B) Chemical methods

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Electrolysis:

One of those methods is Electrolysis where acidulated water (mixed with a small amount of acid or salt) is electrolysed. Water ($\rm{H_2O}$) is decomposed into Hydrogen and oxygen when electric current is passed through it.

⭐ Refer to the attachment for the simple homemade setup of an Electolytic tank. Two pencils with sharpened ends are used as the electrodes because they contain Graphite