Question: What is the main feature of terminal alkynes?
Options:
They have a triple bond in the middle
They can form carbanions
They are less acidic than alkenes
They cannot undergo substitution reactions
Correct Answer: They can form carbanions
Solution:
Terminal alkynes can form carbanions due to the acidity of the hydrogen atom attached to the sp-hybridized carbon.
What is the main feature of terminal alkynes?
Practice Questions
Q1
What is the main feature of terminal alkynes?
They have a triple bond in the middle
They can form carbanions
They are less acidic than alkenes
They cannot undergo substitution reactions
Questions & Step-by-Step Solutions
What is the main feature of terminal alkynes?
Step 1: Understand what terminal alkynes are. Terminal alkynes are a type of alkyne where the triple bond is at the end of the carbon chain.
Step 2: Identify the structure of terminal alkynes. They have a carbon atom with a triple bond to another carbon atom, and this carbon is also bonded to a hydrogen atom.
Step 3: Recognize the importance of the hydrogen atom. The hydrogen atom attached to the sp-hybridized carbon is special because it can be removed.
Step 4: Learn about acidity. The hydrogen atom in terminal alkynes is acidic, meaning it can lose a proton (H+) easily.
Step 5: Understand what happens when the hydrogen is removed. When the hydrogen is removed, it creates a carbanion, which is a negatively charged carbon atom.
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