Question:

Consider the following carbocations : I. $Cl_3 \overset{+}C$ II. $Cl_{2} \overset{+} {C}H$ III. $Cl \overset{+} {C}H_{2}$ IV. $ \overset{+} {C}H_{3}$ The stability sequence follows the order

Updated On: Jun 23, 2023

IV < I < III < II
I < II < III < IV
II < III < IV < I
III < I < II < IV

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The Correct Option is B

Solution and Explanation

Electron withdrawing groups like $?NO_2$, $? X$ etc., decrease the stability of carbonium ion. So, the stability order is $Cl_3C^+ < Cl_2$$\overset{+}{C}H < Cl \overset{+}{C}H_2 < \overset{+}{C}H_3$

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Notes on Organic Chemistry- Some Basic Principles and Techniques

Concepts Used:

Organic Chemistry - Some Basic Principles and Techniques

Organic Chemistry is a subset of chemistry dealing with compounds of carbon. Therefore, we can say that Organic chemistry is the chemistry of carbon compounds and is 200-225 years old. Carbon forms bond with itself to form long chains of hydrocarbons, e.g.CH₄, methane and CH₃-CH₃ ethane. Carbon has the ability to form carbon-carbon bonds quite elaborately. Polymers like polyethylene is a linear chain where hundreds of CH₂are linked together.

Read Also: Organic Compounds

Importance of Organic Chemistry:

Organic chemistry is applicable in a variety of areas including-

Medicines: Example- Aspirin which is a headache medicine and Ibuprofen is a painkiller, both are organic compounds. Other examples include paracetamol.
Food: Example- Starch which is a carbohydrate is an organic compound and a constituent of rice and other grains. It is the source of energy.
Clothing: Example- Nylon, Polyester and Cotton are forms of organic compounds.
Fuels: Examples- Gasoline, Petrol and Diesel are organic compounds used in the automobile industry at large.