What is the main product when 1-bromobutane reacts with sodium hydroxide in etha

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Question: What is the main product when 1-bromobutane reacts with sodium hydroxide in ethanol? (2021)

Options:

Correct Answer: Butene

Exam Year: 2021

Solution:

The reaction of 1-bromobutane with sodium hydroxide in ethanol leads to elimination, forming butene as the main product.

What is the main product when 1-bromobutane reacts with sodium hydroxide in ethanol? (2021)

What is the main product when 1-bromobutane reacts with sodium hydroxide in ethanol? (2021)

Step 1: Identify the reactants. We have 1-bromobutane (a molecule with a bromine atom) and sodium hydroxide (a strong base) in ethanol (a solvent).
Step 2: Understand the type of reaction. Sodium hydroxide can either replace the bromine atom (substitution) or remove it (elimination).
Step 3: Recognize that in this case, the reaction favors elimination because sodium hydroxide is in ethanol, which promotes this type of reaction.
Step 4: In the elimination reaction, the bromine atom and a hydrogen atom from the adjacent carbon are removed, forming a double bond.
Step 5: The result of this elimination is butene, which is an alkene with a double bond between two carbon atoms.

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