Chemistry

Draw the structural formula of each of the following :

Alkyne

(a) No corresponding alkyne

(b) Ethyne

(c) Propyne

(d) Butyne — Position isomers
    (i) 1-butyne     (ii) 2-butyne

(e) Pentyne — Position isomers
    (i) 1-pentyne     (ii) 2-pentyne
    — Chain isomer
    (i) 3-methyl but-1-yne

Organic Chemistry

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Answer

The structural formulae are shown below:

(b) Ethyne

Structural formula for Ethyne. Organic Chemistry, Simplified Chemistry Dalal Solutions ICSE Class 10

(c) Propyne

Structural formula for Propyne. Organic Chemistry, Simplified Chemistry Dalal Solutions ICSE Class 10

(d) Butyne - Position isomers

(i) 1-butyne

Structural formula of 1-butyne. Organic Chemistry, Simplified Chemistry Dalal Solutions ICSE Class 10

ii) 2-butyne

Structural formula of 2-butyne. Organic Chemistry, Simplified Chemistry Dalal Solutions ICSE Class 10

(e) Pentyne — Position isomers

(i) 1-pentyne

Structural formula of 1-pentyne. Organic Chemistry, Simplified Chemistry Dalal Solutions ICSE Class 10.

(ii) 2-pentyne

Structural formula of 2-pentyne. Organic Chemistry, Simplified Chemistry Dalal Solutions ICSE Class 10.

(e) Pentyne — Chain isomer

(i) 3-methyl but-1-yne

Structural formula of 3-methyl but-1-yne. Organic Chemistry, Simplified Chemistry Dalal Solutions ICSE Class 10.

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