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Functional Group

Identify whic...

Question

Identify which of the following is carboxylic acid,alcohol and ether?
$C H_{3} - O | | C - O H$ $C H_{3} - O H$ $C H_{3} - O - C H_{3}$

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Solution

$O$
$C H_{3} - | | C - O H ⟶$ carboxylic acid (as contain funcational group $R - C O O H$ )
$C H_{3} - O H ⟶$ alcohol (as contain funcatinoal group $R - O H$ )
$C H_{3} - O - C H_{3} ⟶$ Ether (as contain funcational group $R - O - R^{'}$ )

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Q. Which one of the following alcohols is most reactive for

S_{N} 1

reaction?

$(a) C H_{3} - O H | C | C H_{3} - C H_{3} (b) C_{6} H_{5} - O H | C | C H_{3} - C_{6} H_{5}$
$(c) C H_{3} - O H | C | C H_{3} - C H_{3} (d) C H_{3} - O H | C - C H_{3}$

Q. The order of reactivity of following alcohols with halogen acids is:

C H_{3} C H_{2} - C H_{2} - O H

C H_{3} - C H_{2} - C | C H_{3} H - O H

C H_{3} - C H_{2} - C H_{3} | C | C H_{3} - O H

Q. In the given reaction

$C H_{3} - O | | C - O - C H_{3} | C | C H_{3} - C H_{3} N a / C_{2} H_{5} O H - ------- \to (X) + (Y)$

$[X] a n d [Y]$ respectively be:
$(a) C H_{3} - C H_{2} - O H a n d C H_{3} - C H_{3} | C | C H_{3} - O H$
$(b) C H_{3} - C H_{2} - O H a n d C H_{3} - C | C H_{3} = C H_{2}$
$(c) C H_{2} = C H_{2} a n d C H_{3} - C H_{3} | C | C H_{3} - O H$
(d) all the above

Q. The order of stability of the following tautomeric compounds is:

C H_{2} = O H | C - C H_{2} - O | | C - C H_{3} ⇌ C H_{3} - O | | C - C H_{2} - O | | C - C H_{3} ⇌ C H_{3} - O H | C = C H - O | | C - C H_{3}

I

I I

I I I

C H_{2} = O H | C - C H_{2} (I) - O | | C - C H_{3} ⇌ C H_{3} - O | | C - C H_{2} (I I) - O | | C - C H_{3}

⇌ C H_{3} - O H | C = C H (I I I) - O | | C - C H_{3}

The order of stability of the following tautomeric compounds is:

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