JEE Mains · Chemistry · STD 11 - 8.4. Organic chemistry reaction mechanism
CORRECT order of stability for the following is
\( CH_{2}=CH^{-}, CH_{3}-CH_{2}^{-}, CH\equiv C^{-} \)
- A \( CH_{3}-CH_{2}^{-}>CH_{2}=CH^{-}>CH\equiv C^{-} \)
- B \( CH_{2}=CH^{-}>CH\equiv C^{-}>CH_{3}-CH_{2}^{-} \)
- C \( CH\equiv C^{-}>CH_{2}=CH^{-}>CH_{3}-CH_{2}^{-} \)
- D \( CH\equiv C^{-}>CH_{3}-CH_{2}^{-}>CH_{2}=CH^{-} \)
Answer & Solution
Correct Answer
(C) \( CH\equiv C^{-}>CH_{2}=CH^{-}>CH_{3}-CH_{2}^{-} \)
Step-by-step Solution
Detailed explanation
\(CH _2= C \overline{ H }~CH _3= C _2~CH \equiv \overline{ C }\) Stability \( \propto \) %S Order of stability: \( CH\equiv\overline{C}>CH_{2}=\overline{CH}>CH_{3}-C\overline{H}_{2} \)
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Chemistry
- If \(\left[ Cu \left( H _{2} O \right)_{4}\right]^{2+}\) absorbs a light of wavelength \(600\) \(nm\) for \(d - d\) transition, then the value of octahedral crystal field splitting energy for \(\left[ Cu \left( H _{2} O \right)_{6}\right]^{2+}\) will be \(.....\,\times 10^{-21}\, J\). (Nearest Integer) (Given : \(h =6.63 \times 10^{-34} \,Js\) and \(c =3.08 \times 10^{8} \,ms ^{-1}\) )JEE Mains 2022 Hard
- Given below are two statements :- Statement \(I:\)- In redox titration, the indicators used are sensitive to change in \(pH\) of the solution. Statement \(II:\)- In acid-base titration, the indicators used are sensitive to change in oxidation potential. In the light of the above statements, choose the most appropriate answer from the options given belowJEE Mains 2023 Medium
- Match List \(I\) with List \(II\)
Choose the correct answer from the options given below :-List \(I\) (Spectral Series for Hyddrogen) List \(II\) (Spectral Region/Higher Energy State) \(A\). Lyman \(I\). Infrared region \(B\). Balmer \(II\). \(UV\) region \(C\). Paschen \(III\). Infrared region \(D\). Pfund \(IV\). Visible region JEE Mains 2024 Hard - In a nucleophilic substitution reaction \(R - Br + C{l^ - }\xrightarrow{{DMF}}R - Cl + B{r^ - }\) , which one of the following undergoes complete inversion of configuration?JEE Mains 2014 Hard
- The concentration of dissolved oxygen \((DO)\) is cold water can go upto ......... \(ppm\)JEE Mains 2019 Hard
- Reaction of thionyl chloride with white phosphorus forms a compound \([ A ]\), which on hydrolysis gives \([B]\), a dibasic acid.\([A]\) and \([B]\) are respectivelyJEE Mains 2023 Medium
More PYQs from JEE Mains
- Suppose that a function \(f: R \rightarrow R\) satisfies \(f(x+y)=f(x) f(y)\) for all \(x, y \in R\) and \(f(1)=3 .\) If \(\sum \limits_{i=1}^{n} f(i)=363,\) then \(n\) is equal toJEE Mains 2020 Medium
- Let \(c, k \in R\). If \(f(x)=(c+1) x^{2}+\left(1-c^{2}\right) x+2 k\) and \(f(x+y)=f(x)+f(y)-x y\), for all \(x, y \in R\), then the value of \(|2( f (1)+ f (2)+ f (3)+\ldots \ldots+ f (20)) \mid\) is equal toJEE Mains 2022 Hard
- A plane which bisects the angle between the two given planes \(2x -y + 2z -4 = 0\) and \(x + 2y + 2z -2 = 0\), passes through the pointJEE Mains 2019 Hard
- Identify \(\mathrm{A}, \mathrm{B}\) and C in the given below reaction sequence.
\(\mathrm{A} \xrightarrow{\mathrm{HNO}_3} \mathrm{~Pb}\left(\mathrm{NO}_3\right)_2 \xrightarrow{\mathrm{H}_2 \mathrm{SO}_4}\) B \(\xrightarrow[\substack{\text { (2) Acetic acid } \\ \text { (3) } \mathrm{K}_2 \mathrm{CrO}_4}]{\substack{\text { (1) Ammonium } \\ \text { acetate }}}\)JEE Mains 2025 Hard - \({image}\) In the above reaction, \(3.9\, g\) of benzene on nitration gives \(4.92\, g\) of nitrobenzene. The percentage yield of nitrobenzene in the above reaction is............. \(\%\). (Round off to the Nearest Integer). (Given atomic mass: \(C : 12.0\, u , H : 1.0\, u\)\(O : 16.0\, u , N : 14.0\, u )\)
JEE Mains 2021 Medium - Given below are two statements: Statement \(I :\) In a diatomic molecule, the rotational energy at a given temperature obeys Maxwell's distribution. Statement \(II :\) In a diatomic molecule, the rotational energy at a given temperature equals the translational kinetic energy for each molecule. In the light of the above statements, choose the correct answer from the options given below:JEE Mains 2021 Medium