In third and fifth which is more stable me group) trans> cis q. arrange the following in decreasing order of their stability ch ch

first check no of alpha hydrogen

Then asymmetrical >symmetrical...then trans >cis

5 has more number of alpha hydrogen than 3..

5 and 6 structures are given same...

you have problem in finding alpha hydrogen?

no sir

bhot easy hai ye to

haa

yhan answer main they have written that three is more stable than fifth

structure is wriiten wrong

as if 6 alpha hydrogen in 5th then there must be two hydrogen and two methyl group

yes 9 hai idhar to

so mis print hai but jo bhi given ho uske according 5>3

sir

why unsymmetrical alkene is more stable than symmetrical aljene

...

unsymmetrical or asymmetrical?

yes

ok wait

why unsymmetrical alkene is more stable than symmetrical aljene

see

let me check for same alpha H

ok

May be it can be explained by group theory but directly as we explained symmetrical is more stable

In asymmetric alkenes , dipoles exist , which tend it react . However, in symmetrical ones as no dipole moment . So it is stable.

And these are nearly equally stable .group theory explained the slightly more stability of asymmetric one

shweta, i think structure 5 is written wrong

The symmetric alkenes are more stable than the asymmetric alkenes because of hyperconjugation between the molecules. Hyperconjugation in symmetric alkenes is greater than asymmetric alkenes.

sir read this

in answer that have written that third is mpr stable than fifty

yes, i this 5th structure is given wrong

wait

check this correct question

got it??

no

why unsymmetrical alkene is more stable than symmetrical

wait let me check

check this

ok

....

symmetrical should be more stable. I'm checking some references

ok

check it

shweta equally stable he

practically asymmetric alkele is slightly more stable than symmetrical

this is dure to better Hyperconjugation in asymmetric alkene

got it now?

gem > trans why

??

it's practically. here Hyperconjugation will be better in gem

also we can check stability by heat of hydrogenation

how by heat of hydrogenation

more the heat of hydrogenation more is the reactivity, less is the stability

check these HOH values.

practically heat of hydrogenation se stability check ki jati he.

also check these values

check this reason check it

got ia now???

yes sir and sorry for late reply

but in general sir

symmetrical alkene is stable n??

no, asymmetrical reason given above

ok sir

thanku

check this reason

sir

ik data Jo bheja usne same enthalpy hai

abhi vale reason main destabilise krta first ko to ignore kyin Kiya

?

reason smj nhi aya ky?

stability of electromeric effect se solve kro