$2 A l + 6 H C l \to 2 A l C l_{3} + 3 H_{2}$ , in the given reaction oxidation state of $A l C l_{3}$ is?

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Solution

The correct option is B 3
Let X be the oxidation state of Al in $A l C l_{3}$ .
The oxidation state of Cl is -1.
$X + 3 (- 1) = 0$
$X - 3 = 0$
$X = + 3$ .
Hence, the oxidation state of Al in $A l C l_{3}$ . is $+ 3$ .

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