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Question

Identify the oxidant and the reductant in the following reaction respectively:
AlCl3+3KAl+3KCl

A
K and AlCl3
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B
AlCl3 and K
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C
Al and KCl
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D
KCl and Al
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Solution

The correct option is B AlCl3 and K
The given redox reaction is AlCl3+3KAl+3KCl
A species which loses electron in a redox reaction is called as reducing agent/reductant.
3K3K++3e (Oxidation).
Here K is losing reagent so it is a reductant.

A species which gains electron in a redox reaction is called as oxidising agent/oxidant.
3e+Al3+Al (Reduction).
Here Al is gaining reagent so it is an oxidant.

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