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Preparation of Alkanes with Grignard Reagent

What is the c...

Question

What is the change in oxidation number of carbon in the following reaction?
$C O (g) + \frac{1}{2} O_{2} (g) \to C O_{2} (g)$

A

0 to + 4

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B

- 4 to + 4

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C

+ 2 to + 4

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D

- 2 to + 4

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Solution

The correct option is C $+ 2 to + 4$
$C O : x + (- 2) = 0 \Rightarrow x = + 2$
$C O_{2} : x + 2 (- 2) = 0 \Rightarrow x = + 4$
So, change in oxidation number of carbon is $+ 2 to + 4$

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