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AS Chemistry > Revision Stuff > Flashcards

Revision Stuff Flashcards

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1
Q

What reaction needs sulphuric acid and a catalyst?

A

Alcohol -> halogeno alkane

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2
Q

What does electrophilic mean?

A

Electron loving

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3
Q

What is markownikoffs rule?

A

Hydrogen will go to the carbon which already had the most hydrogen (electrophilic addition)

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4
Q

What is homolytic fission?

A

The bond splits evenly

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5
Q

What happens when bonds absorb IR radiation?

A

They vibrate

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6
Q

What is the first thing that happens in an IR spectrometer?

A

Blast sample of substance with IR

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7
Q

How does an IR spectrometer work?

A

The bonds absorb IR and vibrate at different frequencies depending on the bond strength and atoms bonding together

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8
Q

What are the steps of a mass spectrum?

A 
Vaporise 
Ionise
Fragmentation
Acceleration
Separation in vacuum
Detector
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9
Q

What is the molecular ion?

A

The biggest ion you create in a mass spectrum

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10
Q

What is the base peak?

A

The highest peak in a mass spectrum

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11
Q

How do you test for the carbonate ion?

A

Add dilute acid and it fizzes

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12
Q

What does nucleophilic mean?

A

Positive loving

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13
Q

How do you test for a sulphate ion?

A

Add barium chloride solution

Forms a white precipitate of barium sulphate

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14
Q

How do you test for ammonium ions?

A

Heat with an alkali (naoh) and test for ammonia fumes by holding damp red litmus paper that will turn blue

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15
Q

How do you test the solubility of the silver halide precipitates?

A

Add ammonia solution
Agcl dissolves at all conc
Agbr dissolves in concentrated
AgI insoluble

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16
Q

What is a homologous series?

A

A series that has the same functional group and general formula

17
Q

When an alcohol reacts with a carboxylic acid to make an ester which one becomes the yl and which one the oate?

A

Alcohol - yl

Carboxylic acid - oate

18
Q

When the oxidation is only a distil what does this mean?

A

Not full oxidation

19
Q

What is needed for an oxidation reaction?

A

H2so4

K2cr2o7

20
Q

What is the colour change in the redox reaction between acidified dichromate ions and ethanol?

A

Orange to green or blue

21
Q

Describe a pie bond

A

The sideways overlap of two p orbitals on each carbon atom which form a pie bond above and below the molecule

AS Chemistry (16 decks)

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