Plz explain this ...heat of combustion order ot-ch ot-ch ch cha che ch

See the structure of cubane. it has very very high HOC

sir m not getting

cyclopropane is highly strained ring

reasons sir

wait

more the number of carbon, more is the HOC so 4 is highest HOC

now we will check the stability of hydrocarbons

less the stability more is the HOC

stability of alkane is more than alkene than alkyne so HOC order will be reversed of stability

got it?

sir but order 1234

hai

hoc ka

kis me diya he

jb same Carbon hote he to stability check krte he na

1,2,3 me same Carbon he to ab stability of hydrocarbons check krege

https://youtu.be/m94DjDDZLko

last main hai

yes I've checked.. mujhe reference source me check krne pdega because generally we check the stability of compound in case of HOC.

jb compound hi most stable he to O2 k sath reaction slow dega. of reaction is slow hogi to product to bad ki baat he na

take these values and you will see that ethane has higher value of HOC than ethylene

now clear shweta?

yes sir

sir alkane Jada stable kyun hota

order 4321 hi hai n

yes

because alkane have only sigma bond jbki alkene and alkyne me pi bonds hote he. pi bonds unstable hote he so easily break ho jate he

but alkane Ka bond length bda hota alkene aur alkyne se

yes, but pi bond pr hi to Nucleophilic addition hota he na, so alkene alkyne addition reaction fast dete he

thanku 🙂

yesa nhi he hi jitne bonds utni stability, hm check krte he ki kisme reaction fast hoti he or kyo. double or triple bonds jldi se break ho jata he so reaction fast hogi na

now clear?

sir this order 4321 is unstability order n

yes