Mechanism of Monochlorination of Methane - Initiation Flashcards

1
Q

What is the reaction that occurs during the monochlorination of methane?

A

It is the reaction between methane and chlorine to form chloromethane

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2
Q

What first happens during the initiation stage?

A

A chlorine molecule is broken down into two atoms in the presence of ultraviolet light

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3
Q

What is the chlorine molecule broken down into in the presence of UV light?

A

It is broken down into two atoms

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4
Q

A chlorine molecule is broken down into two atoms in the presence of what?

A

UV light

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5
Q

What is broken down into two atoms in the presence of UV light?

A

A chlorine molecule

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6
Q

What does the UV light provide for the chlorine molecule?

A

It provides the energy to break the bond in the chlorine molecule and convert the chlorine molecule into two chlorine free radicals

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7
Q

What breaks the bond in the chlorine molecule?

A

Energy provided by UV light

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8
Q

What is the chlorine molecule converted into after the bond in the chlorine molecule has been broken by UV light?

A

It is converted into two chlorine free radicals

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9
Q

Describe how the chlorine molecule bond breaks.

A

It breaks in such a way that each atom joined by the bond retains one of the two electrons from the bond

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10
Q

What is the breaking of a bond in which each atom joined to the bond retains one of the two atoms called?
(2)

A

Homolysis or

Homolytic fission

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11
Q

What is homolysis or homolytic fission?

A

It is the breaking of a bond in such a way that each atom joined to the bond retains one of the two electrons from the bond

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12
Q

What type of reaction is the reaction between methane and chlorine to form chloromethane an example of?

A

It is an example of a photochemical reaction

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13
Q

What is a photochemical reaction?

A

A reaction that is brought about by light

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14
Q

List the steps that occur during the initiation stage.

3

A

Chlorine molecule broken down into two chlorine atoms -UV light

UV light- energy- break bond- two chlorine free radicals

Homolysis/homolytic fission

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