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The names of some compounds are given. W...

The names of some compounds are given. Which one not in the `IUPAC` system?

A

`underset("3-Methyl-2-butanol")(CH_(3) - underset(OH)underset(|)(OH) - underset(CH_(3))underset(|)(CH)-CH_(3))`

B

`underset("4-Methyl-2-pentyne")(CH_(3)-C-=C-CH(CH_(3))_(2))`

C

`underset("2-Ethyl-3-methyl-but-1-ene")(CH_(3)-CH_(2)-underset(CH_(2))underset(||)C-underset(CH_(3))underset(|)CH-CH_(3))`

D

`underset("3-Methyl-4-ethyl heptane")(CH_(3)-CH_(2)-CH_(2)-underset(CH_(2)CH_(3))underset(|)(CH)-overset(CH_(3))overset(|)CH-CH_(2)CH_(3))`

Text Solution

Verified by Experts

The correct Answer is:
D
Ethyl should come before methyl.
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