HARD
11th CBSE
IMPORTANT
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The correct stability order for the following species is:

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Important Questions on Organic Chemistry - Some Basic Principles and Techniques

HARD
11th CBSE
IMPORTANT
In which of the following compounds the C-Cl bond ionization shall give most stable carbodium ion?
HARD
11th CBSE
IMPORTANT
The decreasing order of the stability of carbonium ions:C6H5CH2+ (I),  p-(CH3O)C6H4CH2+ (II),  p-(NO2)C6H4CH2+(III),  p-(CH3)C6H4CH2+ (IV) is.
HARD
11th CBSE
IMPORTANT

In the following carbocation H/CH3 that is most likely to migrate to the positively charged carbon is
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HARD
11th CBSE
IMPORTANT

Arrange the following carbocations in order of increasing stability:

I. (CH3)3CCH2+   II. (CH3)3C+    III. CH3CH2CH2+   IV. CH3-CH+-CH3.

HARD
11th CBSE
IMPORTANT

The order of stability of the following carbocations is.

I. CH2=CH-C+H2          II. CH3-CH2-CH2+         III. Question Image

MEDIUM
11th CBSE
IMPORTANT
The ascending order of the stability of carbanion CH3-(P) , C6H5CH2-(Q) , (CH3)3CH- (R) , CH2=CHCH2- (S)  is.
HARD
11th CBSE
IMPORTANT
Arrange the carbanions (CH3)3C-, Cl3C-, (CH3)2CH-, C6H5CH2- in order of their decreasing stability.
HARD
11th CBSE
IMPORTANT

The stability of the carbanions in the following is

   (I) RCC-    (ii) Question Image       (iii) R2C=C-H2      (iv)  R3C-C-H2.