Identify the alkene which gives only one type of aldehyde upon ozonolysis:

Explanation

You're looking for an alkene that, when cleaved by ozonolysis, produces only one type of aldehyde. This means the alkene must be symmetrical around the double bond.Here's how ozonolysis works and how it applies to each option:Ozonolysis: This reaction breaks the carbon-carbon double bond (C=C) of an alkene and forms two carbonyl compounds. If the alkene is symmetrical, the two carbonyl compounds will be identical.Let's consider each alkene:1-pentene (CH₂=CHCH₂CH₂CH₃): Ozonolysis would produce formaldehyde (HCHO) and butanal (CH₃CH₂CH₂CHO). These are two different aldehydes.2-methylpropene (CH₂=C(CH₃)CH₃): Ozonolysis would produce formaldehyde (HCHO) and acetone (CH₃COCH₃). One is an aldehyde and the other is a ketone, so they are not the same type of aldehyde.2-butene (CH₃CH=CHCH₃): Ozonolysis would produce two molecules of acetaldehyde (CH₃CHO). This is only one type of aldehyde.2,3-dimethyl-2-butene ((CH₃)₂C=C(CH₃)₂): Ozonolysis would produce acetone (CH₃COCH₃). This is a ketone, not an aldehyde.Therefore, the alkene that gives only one type of aldehyde upon ozonolysis is 2-butene