Some Basic Principles Of Organic Chemistry Question 121
Question: Names of some compounds are given. Which one is not in IUPAC system [CBSE PMT 2005]
Options:
A) $ \underset{\text{3-Methyl-2-bulanol}}{\mathop{CH_3\underset{OH,CH_3,}{\mathop{\underset{|,|}{\mathop{-CH-CH-}},}},CH_3}}, $
B) $ \underset{\text{4-Methyl-2-pentyne}}{\mathop{CH_3-C\equiv C-CH{{(CH_3)}_2}}}, $
C) $ \underset{\text{2-Ethyl-3-methyl-bul-1-ene}}{\mathop{CH_3-CH_2\underset{CH_2,CH_3}{\mathop{\underset{||,|,}{\mathop{-C-CH-}},}},CH_3}}, $
D) $ \underset{\text{3-Methyl-4-ethyl heptane}}{\mathop{CH_3-CH_2-CH_2-\underset{CH_2CH_3}{\mathop{\underset{|}{\mathop{CH-\overset{CH_3}{\mathop{\overset{|}{\mathop{CH-}},}},}},}},CH_2CH_3}}, $
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Answer:
Correct Answer: D
Solution:
Ethyl should come before methyl.
