Question

The chemical decomposition of a substance by water is called
(a) electrolysis
(b) hydrolysis
(c) hydrogenation​

Answer 1

$\large\colorbox{brown}{\color{yellow}{Answer}}$

(b)Hydrolysis

$\large\colorbox{brown}{\color{yellow}{Explanation}}$

Electrolysis is the passing of a direct electric current through an ionic substance that is either molten or dissolved in a suitable solvent, producing chemical reactions at the electrodes and separation of the materials.

So, the correct answer is electrolysis.

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