When do positive and negative charges appear on a carbon atom? Give examples.
(N/A) If a carbon atom has three covalent bonds and one vacant orbital,it carries a $(+1)$ charge.
Example: All carbocations,such as $H_{3}C^{+}$.
If a carbon atom has three bonds and one non-bonding electron pair,it carries a $(-1)$ charge.
Example: All carbanions,such as $H_{3}C^{-}$.
Example: All carbocations,such as $H_{3}C^{+}$.
If a carbon atom has three bonds and one non-bonding electron pair,it carries a $(-1)$ charge.
Example: All carbanions,such as $H_{3}C^{-}$.
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Similar Questions
Arrange the following carbocations in increasing order of stability:
$1. \, (CH_3)_2 - \overset{+}{C} - CH_2 - CH_3$
$2. \, (CH_3)_3 - \overset{+}{C}$
$3. \, (CH_3)_2 - \overset{+}{C} H$
$4. \, CH_3 - \overset{+}{C} H_2$
$5. \, \overset{+}{C} H_3$
$1. \, (CH_3)_2 - \overset{+}{C} - CH_2 - CH_3$
$2. \, (CH_3)_3 - \overset{+}{C}$
$3. \, (CH_3)_2 - \overset{+}{C} H$
$4. \, CH_3 - \overset{+}{C} H_2$
$5. \, \overset{+}{C} H_3$
MediumNEET 2013
View SolutionWhich amongst the following is the most stable carbocation?
MediumAIPMT 2005
View SolutionArrange the following carbocations in the decreasing order of their stability:
$a$. $CH_3-CH^{+}-CH_3$
$b$. $CH_3-CH^{+}-OCH_3$
$c$. $CH_3-CH^{+}-COCH_3$
$a$. $CH_3-CH^{+}-CH_3$
$b$. $CH_3-CH^{+}-OCH_3$
$c$. $CH_3-CH^{+}-COCH_3$
Difficult
View SolutionThe stability of carbanions follows the order:
$I: CH_3CH_2CH_2\bar{C}H_2$
$II: CH_3\bar{C}HCH_2CH_3$
$III: (CH_3)_3\bar{C}$
$IV: CH_3\bar{C}(Ph)CH_2CH_3$
$I: CH_3CH_2CH_2\bar{C}H_2$
$II: CH_3\bar{C}HCH_2CH_3$
$III: (CH_3)_3\bar{C}$
$IV: CH_3\bar{C}(Ph)CH_2CH_3$
MediumKVPY 2017
View SolutionMatch the intermediates given in Column $-I$ with their probable structure in Column $-II$.
Column $-I$ Column $-II$ $A$. Free radical $1$. Trigonal planar $B$. Carbocation $2$. Pyramidal $C$. Carbanion $3$. Linear
| Column $-I$ | Column $-II$ |
|---|---|
| $A$. Free radical | $1$. Trigonal planar |
| $B$. Carbocation | $2$. Pyramidal |
| $C$. Carbanion | $3$. Linear |
Easy
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