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(C) Step $1$: Oxidation of the primary alcohol group with $CrO_3$ yields a carboxylic acid group. The phenolic $-OH$ group remains unaffected under th

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(C) Step $1$: Oxidation of the primary alcohol group with $CrO_3$ yields a carboxylic acid group. The phenolic $-OH$ group remains unaffected under these conditions.Step $2$: Treatment with $SOCl_2/\Delta$ converts the carboxylic acid into an acid chloride $(-COCl)$.Step $3$: Heating $(\Delta)$ induces a Friedel-Crafts acylation reaction. The acid chloride group undergoes intramolecular cyclization with the ortho-position of the phenol ring to form a cyclic ketone (indanone derivative).The final product is a $5$-hydroxy-indanone derivative.

The major product of the following reaction is:

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Which of the following substituents will decrease the acidic strength of phenol?

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$C_6H_5OH \xrightarrow{CH_3COCl / NaOH_{(aq)}} C_6H_5OCOCH_3$
The above reaction is an example of which of the following?

The main product of the following reaction will be:

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