Question

If oxidation number of C in CH4 is -4 and C in CO2 is 4 then what is change in oxidation state? Why it can not be -8?

Answer 1

Answer:

the change in oxidation state will be 8

Explanation:

to find change in oxidation state

(final oxidation number) - (initial oxidation number)

this will give us

4 -(-4)

4+4

=8

Answer 2

Answer:

CH4+O2=CO2+H2O

Explanation:

H IS +4 AND C IS -4 SO THE ATOM IS NEUTRAL .

IN CO2 ONE OXYGEN IS -2 SO 2 OXYGEN =-4

IN ORDER TO MAKE THE ATOM NEUTRAL IS HAS TO NE +4 . HENCE ITS +4 RATHER THAN BEING -8