Question:

-The stability of carbanions in the following (i) $RC \equiv {C}^{\ominus}$ (iii) $R_2C = {CH}^{\ominus}$ (iv) $R_3C = {CH_2}^{\ominus}$ , is in the order of

Updated On: May 4, 2024
  • (i) > (ii) > (iii) > (iv)
  • (ii) > (iii) > (iv) > (i)
  • (iv) > (ii)>(iii)>(i)
  • (i) > (iii) > (ii) > (i)
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The Correct Option is A

Solution and Explanation

The carbanion with more s-character is more stable. Thus, the order of stability is $RC \equiv _{C}^{\ominus} > C_6H_5^{\ominus} > R_2C = _{CH}^{\ominus} > R_3C -_{CH_2}^{\ominus}$
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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 CH2 are linked together. 

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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.
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  • Fuels: Examples- Gasoline, Petrol and Diesel are organic compounds used in the automobile industry at large.