23 Organic Reactions SAQ1
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Questions and Answers

What type of reaction is the ionic addition of Br₂, Cl₂, or HCl across C=C in ethene?

Addition reaction

What type of catalyst is typically used in substitution reactions?

Ni catalyst

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

Ester

What is the term for the removal of a small molecule from a large molecule, leaving a C=C behind?

<p>Elimination reaction</p> Signup and view all the answers

What is the oxidising agent commonly used in redox reactions?

<p>Potassium Permanganate or Sodium Dichromate</p> Signup and view all the answers

What is the type of bond that is further polarised in the esterification reaction?

<p>O-H bond</p> Signup and view all the answers

What is the term for the chemical decomposition of a substance by water?

<p>Hydrolysis</p> Signup and view all the answers

What type of carbon is involved in the ionic addition of bromine to alkenes?

<p>A secondary carbon, which is attached to two other carbons.</p> Signup and view all the answers

What is the role of UV light in the initiation step of free radical substitution?

<p>It is used to split Cl₂ into 2 Cl atoms/ Cl free radicals, each containing 1 electron from the double bond.</p> Signup and view all the answers

What is the result of the polarisation of Br₂ in the reaction mechanism of halogenation of alkenes?

<p>Br₂ is split into Br+ and Br-.</p> Signup and view all the answers

What is the reason behind the high reactivity of free radicals in organic chemical reactions?

<p>The presence of an unpaired electron.</p> Signup and view all the answers

What is the product formed when a Cl free radical attacks a methane molecule?

<p>HCl and a methyl radical (CH₃)</p> Signup and view all the answers

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