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Give the correct order of decreasing bas...

Give the correct order of decreasing basicity of the following compounds. `C_(6)underset((I))(H_(5))NH_(2)" "underset((II))((C_(6)H_(5))_(2))NH" "underset((III))((C_(6)H_(5))_(3))N" "underset((IV))(C_(6)H_(11)NH_(2))`

A

`I gt II gt III gt IV`

B

`IV gt III gt II gt I`

C

`IV gt I gt II gt III`

D

`III gt II gt I gt IV`

Text Solution

Verified by Experts

The correct Answer is:
C
Aliphatic amines are more basic than aryl amine. Greater the number of phenyl ring attached to .N. greater will be the delocalisation lesser will be the basicity.
`CH_(3) - overset(oplus)CH - underset(* *)underset(* *)OCH_(3) rArr CH_(3) - Ch = overset(oplus)OCH_(3)`
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The increasing order of the boiling points for the following compound is : underset((I))(C_(2)H_(5))OH " " underset((II))(C_(2)H_(5))Cl " " underset((III))(C_(2)H_(5))CH_(3) " " underset((IV))(C_(2)H_(5))OCH_(3)

Which order is correct for the decreasing reactivity to ring monobromination of the following compounds underset(I)(C_(6)H_(5)CH_(3)), underset(II)(C_(6)H_(5)COOH),underset(III)(C_(6)H_(6)),underset(IV)(C_(6)H_(5)NO_(2))

The basic of compounds I, II, III and IV underset(I)(CH_(3)NH_(2)), underset(II)((CH_(3))_(2)NH), underset(III)((CH_(3))_(3)N), underset(IV)(C_(6)H_(5)CH_(2)NH_(2)) varies in the order.

Give the correct order of decreasing acidity : C_(2)H_(5)underset((I))SH C_(2)underset((2))(H_(5)OH C_(2)underset((3))(H_(5)NH_(2) CH_(3)underset((4))(CH_(2)CH_(3)

C_(6)H_(5)underset((P))CH_(2)OH_(2),C_(6)H_(5)underset((Q))COOH,C_(6)H_(5)underset((R))OCH_(3),C_(6)H_(5)underset((S))OH:

C_(6)H_(5)-CH=underset(CHO)underset(|)C-C_(6)H_(5)