The molecular formula C5H10 corresponds to a degree of unsaturation of 1, which means we are dealing with cycloalkanes or alkenes. Since the question specifies cycloalkanes, we are looking for rings or cyclic structures.

1. The first isomer is cyclopentane, which is a five-membered ring.

2. The second isomer is methylcyclobutane, which is a four-membered ring with a methyl group attached.

3. The third isomer is ethylcyclopropane, which is a three-membered ring with an ethyl group attached.

So, the answer is B. 3.

Question

The molecular formula C5H10 corresponds to a degree of unsaturation of 1, which means we are dealing with cycloalkanes or alkenes. Since the question specifies cycloalkanes, we are looking for rings or cyclic structures.

1. The first isomer is cyclopentane, which is a five-membered ring.

2. The second isomer is methylcyclobutane, which is a four-membered ring with a methyl group attached.

3. The third isomer is ethylcyclopropane, which is a three-membered ring with an ethyl group attached.

So, the answer is B. 3.

Knowee AI · Accepted Answer

The molecular formula C5H10 corresponds to a degree of unsaturation of 1, which means we are dealing with cycloalkanes or alkenes. Since the question specifies cycloalkanes, we are looking for rings or cyclic structures.

1. The first isomer is cyclopentane, which is a five-membered ring.

2. The second isomer is methylcyclobutane, which is a four-membered ring with a methyl group attached.

3. The third isomer is ethylcyclopropane, which is a three-membered ring with an ethyl group attached.

So, the answer is B. 3.

How many cycloalkane constitutional isomers (excluding stereoisomers) are there with molecular formula C5H10? A. 2 B. 3 C. 4 D. 5 E. 6

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