1.

An alkene 'A' contains three C-C, eight C-H sigma bonds and one C-C pi-bond. 'A' on ozonolysis gives two moles of an aldehyde of molar mass 44u. Write IUPAC name of 'A'.

Answer»

Solution :Product is formed of molecular weight 44u ALDEHYDE.
Aldehyde GROUP is CHO = 12 + 1 + 16 = 29
TOTAL weight `= 44-29 = 15 -= CH_(3)` group
`therefore` Product 1 is aldehyde `CH_(3)CHO`.
From 2 moler of `CH_(3)CHO`, product alkene is formed.

`underset("But-2-ene")(CH_(3)CH=CHCH_(3))`(A)
Structure of but-2-ene with bonds are as follows :
`Hoverset(sigma)(-)underset(H)underset(|sigma)overset(H)overset(|sigma)(C)overset(sigma)(-)overset(H)overset(|sigma)(C)underset(sigma)overset(sigma)(=)overset(H)overset(|sigma)(C)overset(sigma)(-)underset(H)underset(|sigma)overset(H)overset(|sigma)(C)overset(sigma)(-)H`
In these structure these are C-C `sigma` bond.
+ These structure has 8 C-H `sigma`-bond.
+ These structure has 1 C-C `pi`-bond.
All DETAILS relates with the que asked.
`therefore` Main product is But-2-ene.


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