23 Organic Reactions MCQ1

What is the role of Ni catalyst in Substitution Reactions?

To facilitate the ionic addition of Br₂, Cl₂, or HCl across C=C in ethene

To increase the yield of esterification reaction

To increase the rate of reaction (correct)

To facilitate the joining of small molecules to form larger molecules

What is the type of reaction when a small molecule is removed from a large molecule, leaving a C=C behind?

Esterification reaction

Elimination reaction (correct)

Substitution reaction

Redox reaction

What is the name of the reaction between carboxylic acids and alcohols?

Redox reaction

Hydrolysis

Esterification (correct)

Polymerisation

What is the term for the joining together of small molecules to form larger molecules?

Polymerisation Signup and view all the answers

What is the term for the chemical decomposition of a substance by water, with water itself also being decomposed?

Hydrolysis Signup and view all the answers

What is the type of reaction that involves the use of an oxidising agent, such as Potassium Permanganate or Sodium Dichromate?

Redox reaction Signup and view all the answers

What is the type of alcohol where the carbon attached to the OH group is attached to only one other carbon?

Primary alcohol Signup and view all the answers

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

Attached to 2 other carbons Signup and view all the answers

What is the purpose of U.V. light in the initiation step of free radical substitution?

To split Cl2 into 2 Cl free radicals Signup and view all the answers

What is the result of the Br⁺ attacking the C=C in the halogenation of alkenes?

The C=C bond is broken Signup and view all the answers

What is the term used to describe the process of Br2 being split into Br+ and Br-?

Heterolytic Fission Signup and view all the answers

What is the characteristic of the Cl free radical in the propagation step of free radical substitution?

It is very reactive Signup and view all the answers

What is the product of the reaction between a Cl free radical and a methane molecule?

HCl and a methyl radical Signup and view all the answers

23 Organic Reactions MCQ1

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