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 What is reduction reaction ?

Reduction: The addition of hydrogen to a substance or removal of oxygen from a substance is called reduction.

Oxidation and reduction occur together in a reaction.

  1. Zinc reacts with steam to produce zinc oxide and hydrogen gas.

Zn(s) + H2O(g) -----> ZnO(s) + H2(g)

In above reaction, Zinc(Zn) is getting oxidized as addition of oxygen to zinc is taking place and water is getting reduced as removal of oxygen from water is taking place.

ii Aluminum reacts with steam to form aluminum oxide and hydrogen gas.

2Al(s) + 3H2O(g) -----> Al2O3(s) + 3H2(g)

In above reaction, Aluminium(Al) is getting oxidized as addition of oxygen to aluminum is

taking place and water is getting reduced as removal of oxygen from water is taking place.


 

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reduction is defined as a process which involves gain of electrons. 

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Reduction is defined as a process that involves a gain of hydrogen or a loss of oxygen. When a substance loses oxygen or gains hydrogen during a reaction, it is reduced.

hopes it help:-

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 reduction the term tells u as it is :

it removes oxygen

it may even remove any electro negative component or radical

radical is an unpaired electron

it adds hydrogen

or addition of anyother electro positive compponent or radical

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