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Structural Isomerism

A hydrocarbon...

Question

A hydrocarbon has a molecular formula $X (C_{6} H_{6})$ . The only type of unsaturation that $X$ has are triple bonds. How many different $I U P A C$ names can be assigned to $X$ ?

A

5

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B

3

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C

4

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D

7

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Solution

The correct option is A 5
The given formula of X indicates that it has two triple bonds (four degree of unsaturation). Hence , possible diynes are
All of the above five diyne have different IUPAC names.

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