The sum of the oxidation numbers of all the c | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) Step $1$: Assign oxidation numbers to the atoms in $C_6H_5CHO$. Hydrogen atoms attached to carbon in the benzene ring have an oxidation number of

Vedclass · Accepted Answer

$-4$

Vedclass · Answer

(D) Step $1$: Assign oxidation numbers to the atoms in $C_6H_5CHO$. Hydrogen atoms attached to carbon in the benzene ring have an oxidation number of $+1$, and the hydrogen in the $-CHO$ group also has an oxidation number of $+1$. Oxygen has an oxidation number of $-2$.Step $2$: Let the sum of oxidation numbers of all $7$ carbon atoms be $x$. The sum of oxidation numbers of all atoms in a neutral molecule is $0$.Step $3$: The molecule contains $6$ hydrogen atoms (each $+1$) and $1$ oxygen atom $(-2)$.Step $4$: $x + 6(+1) + 1(-2) = 0$.Step $5$: $x + 6 - 2 = 0 \implies x + 4 = 0 \implies x = -4$.

The sum of the oxidation numbers of all the carbon atoms in $C_6H_5CHO$ is

Similar Questions

The oxidation numbers of the $C$ atom in $CH_{2}Cl_{2}$ and $CCl_{4}$ are respectively:

What is the oxidation number of $S$ in $SO_4^{2-}$?

Compounds having the highest oxidation state of the central atom act as acids,the lowest ones act as bases,and intermediate oxidation states act as amphoteric. Which one of the following is amphoteric?

Sulphur has the lowest oxidation number in

What is the oxidation state of sulphur in oil of vitriol?

Vedclass Test Series

Exam Paper Generator

Online Exam Module