23 Organic Reactions MCQ4
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Questions and Answers

What is the type of reaction that involves the removal of a small molecule from a large molecule, leaving a C=C behind?

  • Substitution reaction
  • Polymerisation reaction
  • Elimination reaction (correct)
  • Addition reaction

What is the purpose of a Ni catalyst in a substitution reaction?

  • To facilitate the reaction (correct)
  • To initiate the reaction
  • To terminate the reaction
  • To slow down the reaction

What is the product of a reaction between a carboxylic acid and an alcohol?

  • Aldehyde
  • Ester (correct)
  • Ketone
  • Acid anhydride

What is the role of the inductive effect in esterification reactions?

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

What is the difference between a primary and secondary alcohol?

<p>The type of carbon atom attached to the OH group (A)</p> Signup and view all the answers

What is the purpose of potassium permanganate in redox reactions?

<p>To act as an oxidising agent (A)</p> Signup and view all the answers

What is the product of the reaction between an aldehyde and a primary alcohol?

<p>Hemiacetal (C)</p> Signup and view all the answers

What is the characteristic of the carbon attached to the OH group in secondary alcohols?

<p>Attached to 2 other carbons (C)</p> Signup and view all the answers

What is the result of the acidic nature of carboxylic acids in the reaction with ethanoic acid?

<p>It loses a hydrogen (B)</p> Signup and view all the answers

What is the term for the process of Br2 splitting into Br+ and Br-?

<p>Heterolytic fission (C)</p> Signup and view all the answers

What is the role of U.V. light in the free radical substitution reaction?

<p>To initiate the reaction (D)</p> Signup and view all the answers

What is the characteristic of the methyl free radical (CH₃)?

<p>It is highly reactive (C)</p> Signup and view all the answers

What is the final product formed in the reaction of methane with Clâ‚‚?

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