Heating phthalic anhydride and concentrated sulfuric acid with which of the following yields phenolphthalein?
- ASalicylic acid
- BPhenol
- CPhenacetin
- DPhenanthrene
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Similar Questions
Among the following four compounds:
$(i)$ Phenol
$(ii)$ Methyl phenol
$(iii)$ Meta-nitrophenol
$(iv)$ Para-nitrophenol
The acidity order is:
$(i)$ Phenol
$(ii)$ Methyl phenol
$(iii)$ Meta-nitrophenol
$(iv)$ Para-nitrophenol
The acidity order is:
MediumAIPMT 2010
View SolutionGiven below are two statements.
Statement $I$: Phenols are weakly acidic.
Statement $II$: Therefore they are freely soluble in $NaOH$ solution and are weaker acids than alcohols and water.
Choose the most appropriate option.
Statement $I$: Phenols are weakly acidic.
Statement $II$: Therefore they are freely soluble in $NaOH$ solution and are weaker acids than alcohols and water.
Choose the most appropriate option.
Which intermediate is formed in the Reimer-Tiemann reaction?
Picric acid is
Medium
View SolutionWhich of the following compounds has the least $pK_a$ value?
Medium
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