Question:

Which statement best explains why A is more acidic than B?

Updated On: Jul 12, 2022

The larger size of ketone group helps to stabilize the conjugate base
The ketone group exert a large inductive effect in conjugate base of A
The ketone group allows for resonance delocalisation of the charge in conjugate base
The OH oxygen in A is more electronegative than the OH oxygen in B

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The Correct Option is C

Solution and Explanation

Compound A is more acidic than B because of the delocalisation of the charge in its conjugate base due to resonance.

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Notes on Hydrocarbons

Concepts Used:

Hydrocarbons

Hydrocarbons can be described as organic compounds that consists only hydrogen and carbon atoms. These compounds are of different types and thereby have distinct natures. Hydrocarbons are colorless gases and are known for discharging faint odours. These have been categorized under four major classes named as alkynes, alkanes, alkenes, and aromatic hydrocarbons.

Types of Hydrocarbons

Saturated hydrocarbons - Saturated hydrocarbons are those compounds where there is a single bond exists between carbon atoms and are saturated with atoms of hydrogen.
Unsaturated hydrocarbons - Hydrocarbons comprises of at least one double or triple bond between carbon atoms are known as unsaturated hydrocarbons.
Aliphatic hydrocarbons - The term denotes the hydrocarbons formed as an outcome of the chemical degradation of fats. Aliphatic hydrocarbons are basically chemical compounds.
Aromatic hydrocarbons - They are distinguished because of the presence of benzene rings in them. They give away distinct types of aroma. These hydrocarbons comprises of only hydrogen and carbon atoms.