00:01
For the first part of the question, they have given the reaction c2 h6o2 gives rise to c2 h2 h2 plus h2.
00:13
Now we can see that there are six hydrogens in the reactant but there are only four hydrogens and two hydrogens are removed.
00:23
This means there is loss of hydrogen and that means oxidation.
00:29
So, oxidation has different kinds of interpretations.
00:34
One is addition of oxygen atoms or removal of hydrogen atom or loss of electron.
00:47
Any of these three will be called as oxidation.
00:50
Since there is removal of hydrogen, this is an oxidation.
00:53
So the carbon undergoes oxidation and option a is the correct.
00:57
Now if you look at the second part of the question.
01:00
We see that there are four options given option a as pb o gives rise to p b then option b is given k cl o2 gives rise to k cl o3 then option c is s and o and gives to s and o2 and option d is c u2 o gives rise to c u o now which of the following partial reactions is undergoing reduction reduction reduction reduction is just opposite to the oxidation where we see removal of oxygen atoms and addition of hydrogen atoms or addition of electrons or gain of electrons rather we can say this as gain of electrons now if we see in the first option we see that the lead from plus 2 state goes to 0 that means it is gaining electrons so this is a reduction reaction next, here kclo2, kclo3, it is gain in an oxygen, that means it is an oxidation, not a reduction.
02:12
Sno to sno 2, that means gaining an oxygen, that means it is oxidation, not reduction.
02:17
Co2 to coo, we can first check the oxygen state.
02:21
So in co2o, 2x plus minus 2 is equal to 0, so x will be equal to 1.
02:28
So plus 1 state to plus 2 state...