When benzaldehyde is oxidised to give benzoic acid then the oxidation state of carbon of aldehydic group is changed from?
Answers
When benzaldehyde is oxidised to give benzoic acid then the oxidation state of carbon of aldehydic group is changed from?
You shuld not that when there are two bonds between the same atom do not affect the oxidation state and thus is taken as zero.
Then what happens is that only the functional group, CHO will be be taken into consideration in calculation of the oxidation state.
Oxidation state of carbonyl carbon in benzaldehyde is given as
CHO is x + 1 -2
Giving 0
You can also say that x = +1
Answer:
Explanation:
Any two bonds between the same atom do not affect the oxidation state and is taken as zero. Therefore, only the functional group will be considered to calculate oxidation state of carbonyl carbon.
Therefore, oxidation state of carbonyl carbon:-
In benzaldehyde =
-CHO = x + 1 -2 = 0 or x = +1
In benzoic acid =
-COOH = x + 2(-2) + 1 = 0 or x = +3
Here, the oxidation state is changing from +1 to +3.