Which of the following is not an isomer of hexane?
1.2,2-dimethylbutane
2.2,2-dimethylpentane
3.3-methylpentane
4.2-methylpentane
5.2,3-dimethylbutane
Question 2What is the systematic name of the alkane shown below?
![](data:text/plain;base64,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)
1.3,7-dimethyl-4-propyloctane
2.2-methyl-5-(1-methylpropyl)octane
3.2-ethyl-6-methyl-3-propylheptane
4.3-methyl-4-(3-methylbutyl)heptane
5.2,6-dimethyl-5-propyloctane
Question 3What is the best IUPAC name for the following compound?
![](data:text/plain;base64,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)
1.2-ethyl-3-isopropylhexane
2.1-isopropyl-3-ethylhexane
3.4-isopropyl-5-ethylhexane
4.3-methyl-4-isopropylheptane
5.4-isopropyl-3-methylheptane
Question 4Which of the following choices is not an alkane?
1.C12H26
2.C10H20
3.C11H24
4.C16H34
5.C20H42