The more stable the particular alkene is ,the more easier to hydrogenate it.
Trans is most stable(least steric hindrance )
Followed by cis and then two groups on same carbon.
Rate is directly proportional to stability of alkene.
Are you sure? As more stability implies less reactivity and our had also told us the same
Sorry pls ignore this post it’s indirectly proportional to stability .
So the answer is exactly reversed.
How to compare stability of cis and 2 group on the same carbon?
Compare which has less steric hindrance.
CIS has less steric hindrance compared to two groups in same carbon.
Can anyone explain clearly how to compare rate of reaction between these 3?
Order of Rate of reaction will be B>A>C.
Rate of reaction is inversely proportional to the stability of compound.
Unstable compound is more reactive because compound try to attend stability.
My main question is on which basis to compare stability?
See there is lots of reasons on which you can compare stability of compound.
In the given question one of the main reason is steric hindrance. Two big group repulsion.
stability leads to faster reaction this is the reason and stability is disturbed by repulsion between large groups
as the distance between two groups increases decreases repulsion giving more stability
Trans is most stable(least steric hindrance )no.3
then comes no. 1
and then two groups on same carbon.no.2
Rate is directly proportional to stability of alkene