Arrange the following carbanions in order of their decreasing stability. (A) H3C-C ≡ C– (B) H-C ≡ C– (C) H3C – CH–2 (a) A>B>C (b) B>A>C (c) C>B>A (d) C>A>B

Asked by Last Modified  

Follow 2
Answer

Please enter your answer

c) B>A>C
Comments

Tutor, The ultimate solution to the fear of Organic Chemistry, PhD from DRDO in Chemical Science.

Option (B) is the right answer. Explanation: Before solving such types of problem we should have the concept of conjugate acid-base theory. Here in question given three conjugate base of their acid 1) CH3-CCH, 2) HCCH, 3) H3C-CH2- respectively. We know that unstable conjugate base provides stable acids...
read more
Option (B) is the right answer. Explanation: Before solving such types of problem we should have the concept of conjugate acid-base theory. Here in question given three conjugate base of their acid 1) CH3-CCH, 2) HCCH, 3) H3C-CH2- respectively. We know that unstable conjugatebaseprovides stable acids and vice versa. If we order the decreasing stability of 1), 2) and 3) then we get 1>2>3, one get one extra substituent than 2 and 3 is a charge entity. According to this 2 providesmorestable conjugatebasethan 1 i,e; B>A. But for 3 it contain one negative charge even afterabsorptionof one proton. Therefor here conjugate acid base theory is not applicable. Hybridization play an important role in stabilization of particular entity. For A) and B) negative charge on sp hybridised molecular orbital (MO) whereas for C) it is on sp3 hybridized. Again sp MO provides extra stability to nagative charge because of its spherical size than dumble size sp3 orbital. Due to spherical size it remain more closely to nucleous andstabilized bydelocalizing the charge around the nucleous. Due to dumble size sp3 MO remain far away from the nucleous. Thats why probability of delocalization is less. For this reason C) is highly unstable. read less
Comments

Related Questions

What is the fee for a student going to class 11 for JEE coaching?
fees for JEE coaching (11th or 12th) its depends upon which coaching your joining like if u will go KOTA and your joining RESONANCE, BANSAL, ALLEN, MOTION, VIBRANT, CAREER POINT almost all coaching will...
Saddam
0 0
6
Is it necessary to join coaching classes after class 11?
First of all to join school is important but it also depend on your school standards. If teacher are good and provide best which is important to you than must join otherwise can take tution classes outside...
K.
0 0
5
Define the following: (i) First law of thermodynamics. (ii) Standard enthalpy of formation.
The First Law of Thermodynamics It specifies that energy is recollected. According to it, the energy is never made nor extinguished but it can be altered. The quantity of energy lost by a system will...
Ashwini
0 0
5
Name the alkali metal which shows diagonal relationship with magnesium?
Alkali Metal LITHIUM shows diagonal relationship with Alkaline Earth Metal MAGNESIUM
Vibha
0 0
7

Now ask question in any of the 1000+ Categories, and get Answers from Tutors and Trainers on UrbanPro.com

Ask a Question

Related Lessons

Alcohols NEET & Boards theory
Alcohols are organic compounds containing a hydroxyl (-OH) group bonded to a saturated carbon atom. They are classified as primary, secondary, or tertiary based on the number of carbons directly attached...

Balancing Redox Reaction
Redox reaction is an Oxidation-Reduction Reaction. Balancing a redox reaction in an essential medium requires an additional step when we finish of which involves the addition of an equal number of hydroxyl...

Mole concept
P

Pooja S.

0 0
0

convert ethanal into the following compounds? (i) Butan-1,3-diol (ii) But-2-enal (iii) But-2-enoic acid
QUESTION convert ethanal into the following compounds? (i) Butan-1,3-diol (ii) But-2-enal (iii) But-2-enoic acid ANSWER

Recommended Articles

While schools provide formal education to the children, the home is where they start learning about things informally. Parents think that schools will take the initiative to educate their children. Well, this is partially true, as parents also play an essential role in bringing up their child. For the development of particular...

Read full article >

Learning for every child starts from a very young age. While the formal methods include school curriculums and private lessons, the informal methods include dancing, music, drawing, and various fun-filling activities. Playing games and practising these types of activities helps the children get out of boredom and...

Read full article >

With the current trend of the world going digital, electronic renaissance is a new movement that is welcomed by the new generation as it helps makes the lives of millions of people easier and convenient. Along with this rapidly changing movement and gaining popularity of Internet, e-Learning is a new tool that emerging...

Read full article >

Once over with the tenth board exams, a heavy percentage of students remain confused between the three academic streams they have to choose from - science, arts or commerce. Some are confident enough to take a call on this much in advance. But there is no worry if as a student you take time to make choice between - science,...

Read full article >

Looking for Class 11 Tuition ?

Learn from the Best Tutors on UrbanPro

Are you a Tutor or Training Institute?

Join UrbanPro Today to find students near you