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Chemical Properties of Alcohol

Unknown compo...

Question

Unknown compound $A C_{9} H_{8} O_{5}$ on methylation with $(C H_{3})_{2} S O_{4} / N a O H$ forms methyl derivative whose $M W i s 210.$ The number of hydroxyl groups in A is:

F i v e

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O n e

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F o u r

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T h r e e

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Solution

The correct option is C $F o u r$

c) No. of –OH groups = $\frac{M W o f m e t h y l e t h e r - M W o f C o m p o u n d}{14}$ = $\frac{210 - 196}{14}$ = 1

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