Question

Amongst those given below, the total number of compounds soluble in aqueous $NaOH$ are:

• A. $0$
• B. $1$
• C. $2$
• D. $3$
• E. $4$
• F. $5$
• G. $6$
• H. $7$
• I. $8$
• J. $9$

Answer 1

The correct option is E $4$

The compounds soluble in aqueous $NaOH$ are cyclohexanoic acid, phenol, 4-dimethylaminoethanol, naphthalene-1-carboxylic acid.
The solubility is due to the acidity of a carboxylic group or phenolic OH group which react with NaOH to form soluble salts.
Thus, the total number of compounds soluble in aqueous $NaOH$ is 4.