Organic Chemistry Acids and Carbocations
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Questions and Answers

Which of the following compounds is the strongest acid?

  • CH3COOH
  • HCOOH
  • ClCH2CH2CH2COOH (correct)
  • CH3CH2CH(Cl)CO2H

Which of the following acids is stronger than acetic acid?

  • Propanoic acid
  • Butyric acid
  • (CH3)2CHCOOH
  • HCOOH (correct)

Which of the following acids have the lowest pKa value?

  • CHCl2COOH
  • ClCH2CH2CH2COOH
  • CCl3COOH (correct)
  • CH3CHClCOOH

The stabilization due to resonance is maximum in which of the following compounds?

<p>CH3−CH=CH−Cl (B)</p> Signup and view all the answers

Which of the following resonating structures of chlorides is least stable?

<p>CH2−CH−Cl (B)</p> Signup and view all the answers

Among the following, the strongest base is?

<p>C6H5NH2 (D)</p> Signup and view all the answers

What is the nature of the effect exhibited by the oxygen atom in phenol?

<p>More dominating resonance effect than inductive effect (D)</p> Signup and view all the answers

Which of the following is the correct stability order of carbocations?

<p>CH3 – CH2 – C H 2 &gt; CH3 – C H – CH3 &gt; CH2 = CH – C H 2 (B)</p> Signup and view all the answers

What is the reason for mesomeric effect?

<p>Delocalization of π electrons (B)</p> Signup and view all the answers

What is the correct order of acidity of the following phenols?

<p>B &gt; D &gt; C &gt; A (D)</p> Signup and view all the answers

Which of the following is the most stable carbanion?

<p>(A), (B), (C), (D)</p> Signup and view all the answers

Which bond is most likely to undergo heterolytic cleavage?

<p>C-H bond (D)</p> Signup and view all the answers

What type of bond cleavage is referred to in the given statement?

<p>Heterolytic cleavage (A)</p> Signup and view all the answers

Which of the following bonds is least likely to undergo heterolytic cleavage?

<p>C-C bond (B)</p> Signup and view all the answers

What is the characteristic of the bond that undergoes heterolytic cleavage most easily?

<p>It is a weak bond (C)</p> Signup and view all the answers

Which of the following compounds is the most acidic?

<p>m-chloro phenol (C)</p> Signup and view all the answers

Which of the following statements is true about the given bond?

<p>It is the most easily cleaved bond (A)</p> Signup and view all the answers

What is the significance of the given bond in organic chemistry?

<p>It is a bond that undergoes heterolytic cleavage (B)</p> Signup and view all the answers

Which compound exhibits hyperconjugation?

<p>Allyl chloride (D)</p> Signup and view all the answers

What is the correct order of acidic strength of the following compounds?

<p>D &gt; C &gt; A &gt; B (A)</p> Signup and view all the answers

Which of the following compounds is the strongest base?

<p>Trimethylamine (A)</p> Signup and view all the answers

Which of the following is least reactive chlorine?

<p>Vinyl chloride (B)</p> Signup and view all the answers

Which resonating structure of 1-methoxy-1,3-butadiene is least stable?

<p>e (D)</p> Signup and view all the answers

Which of the following compounds is least stable?

<p>CH3 − C H − CH 3 (B)</p> Signup and view all the answers

Which of the following compounds are aromatic in nature?

<p>CH 2 = CH − C H − CH = O− CH 3 (C)</p> Signup and view all the answers

Which of the following is most stable alkene?

<p>CH 3 –C– C H–C6 H 5 (A)</p> Signup and view all the answers

What is the correct order of acidic strength of the following compounds?

<p>c &gt; d &gt; b &gt; a (B)</p> Signup and view all the answers

Phenol is less acidic than which of the following compounds?

<p>o-Nitrophenol (C)</p> Signup and view all the answers

Which of the following intermediate has complete octet?

<p>Carbanion (B)</p> Signup and view all the answers

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