Question

15. Electrolysis of water is an
1 Soins
example of
Combination reaction
Double displacement reaction
Decomposition reaction
Displacement reaction​

Answer 1

Answer:

and according to question decomposition reaction and

is an example of non spontaneous redox reaction

Explanation:

it is helpful for u

Answer 2

Electrolysis of water is an

Decomposition reaction

$\large{ \boxed{ \rm{ \blue{Option \: C}}}}$

Explanation:-

• Acidified water undergoes electrolysis producing H2 and O2 gases in the ratio 2:1 by volume.

$\large{ \rm{2H_2O \xrightarrow{Electric \: current}2H_2 + O_2}}$

• These kind of reactions in which electric current is passed through the liquid like water or any aqueous solution, they are known as Electrolytic reactions.
• As, Water is getting decomposed into its components, due to electric current, Hence it is a decomposition reaction.

Why Acidified?

It is because, acids provides ions to water whivh increases its conductivity(electric conductivity) and hence increasing the rate of decomposition reaction.

Explore more !!

While the process is nearly completed, we can observe that volume of gas collected in cathode is two times the volume od gas collected in anode.

⚠️ And, You can test the presence of H2 in cathode, when it burns with a popping sound. And presence of O2 because it supports burning or combustion.

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