Which of the following pairs of compounds are geometric isomers?

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Question: Which of the following pairs of compounds are geometric isomers?

Options:

Correct Answer: Cis-2-butene and trans-2-butene

Solution:

Cis-2-butene and trans-2-butene differ in the arrangement of groups around the double bond, making them geometric isomers.

Which of the following pairs of compounds are geometric isomers?

Which of the following pairs of compounds are geometric isomers?

Step 1: Understand what geometric isomers are. They are compounds that have the same molecular formula but differ in the arrangement of atoms around a double bond.
Step 2: Identify the compounds given in the question. In this case, we have cis-2-butene and trans-2-butene.
Step 3: Look at the structure of cis-2-butene. In this compound, the two methyl groups (CH3) are on the same side of the double bond.
Step 4: Now, look at the structure of trans-2-butene. Here, the two methyl groups (CH3) are on opposite sides of the double bond.
Step 5: Compare the two structures. Since they have the same molecular formula (C4H8) but different arrangements around the double bond, they are geometric isomers.

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