Which of the following are the isomers of pentane?
Correct answer: A. n-pentane, 2-methyl butane, 2,2-dimethylpropane
- A. n-pentane, 2-methyl butane, 2,2-dimethylpropane
- B. n-pentane, 2-methyl butane, 2,3-dimethyl butane
- C. n-pentane, 3-methyl butane, 2,2-dimethylpentane
- D. n-pentane, 2-methyl pentane, 2,2-dimethyl propane
Explanation
Pentane has 3 isomers which are as follows; CH3-CH2-CH2-CH2-CH3 (n-pentane) CH3-CH(CH3)-CH2-CH3 (2-methyl butane) CH3-C(CH3)2-CH3 (2,2-Dimethylpropane) Hence, option A is correct.
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Hydrocarbons are studied through the structures and reactions of alkanes, alkenes, alkynes and aromatic compounds. Coverage includes free radical substitution in alkanes, electrophilic addition to carbon-carbon multiple bonds, benzene substitution, aromatic stability and the difference between addition reactions of alkenes and substitution reactions of benzene.
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