1.

One carbonyl hydrocarbon (X) on addition of H_(2) gas addition product on ozonolysis of 'X' gives (i) Ethanal (ii) Propanone and (iii) Butane-1, 4-diol. Give the structure of 'X' and IUPAC name.

Answer»

Solution :(i) No of `pi`-bond in= addition of `H_(2)`
`therefore` Thee are `2pi`-bond in .X. HYDROCARBON.
(II) On ozonolysis, 3 products are formed.
(a) Ethanal `CH_(3)CHO` or `CH_(3)CH=O`
(b) Propanone `CH_(3)COCH_(3)` or `CH_(3)-underset(CH_(3))underset(|)(C)=O`
(c) Butane-1, 4-diol `CHOCH_(2)CH_(2)CHO` or `O=CHCH_(2)CH_(2)CH=O`
(iii) On removing .O. and PUTTING double bond is (a), (b) and (c) above structure. The structure .X. can be written as.
[(a) and (b) at end and (c) at middle]
`(CH_(3)CH)/((a))=(CH-CH_(2)CH_(2)CH)/((b))=underset((CH_(3))/((c)))underset(|)(C)-CH_(3)`
IUPAC NAME : 2-Methyl-xota-2, 6-diene.


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