Write the decreasing order of acidic strengths of the following:
A : Phenol, B:p-nitrophenol, C: p-chlorophenol, D: p-cresol and E: p-methoxy phenol.

Explanation

To determine the decreasing order of acidic strengths of the given compounds (Phenol, p-nitrophenol, p-chlorophenol, p-cresol, and p-methoxyphenol), we need to analyze the effects of substituents on the phenolic hydroxyl group (-OH) and how they influence acidity.

### Step 1: Understand the structure and substituents
- **Phenol (A)**: Contains a hydroxyl group attached to a benzene ring.
- **p-Nitrophenol (B)**: Contains a nitro group (-NO2) at the para position, which is a strong electron-withdrawing group.
- **p-Chlorophenol (C)**: Contains a chloro group (-Cl) at the para position, which is a weak electron-withdrawing group.
- **p-Cresol (D)**: Contains a methyl group (-CH3) at the para position, which is an electron-donating group.
- **p-Methoxyphenol (E)**: Contains a methoxy group (-OCH3) at the para position, which is also an electron-donating group.
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