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OCR B Chemistry Alevel > Organic Reactions > Flashcards

Organic Reactions Flashcards

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1
Q

define electrophile

A

species which is attracted to electron-rich regions in other molecules that can accept a LP of electrons to form a covalent bond

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2
Q

define nucleophile

A

species with a LP of electrons it can donate to a positively charged atom to form a covalent bond

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3
Q

define substitution

A

One atom or group in a molecule is swapped out for another

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4
Q

give key features of addition reactions

A

Reactant has a double bond
100% atom economy
Single product

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5
Q

define condensation reaction

A

Two molecules react and bond together with the loss of a small molecule (e.g. H2O, HCl)

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6
Q

define polymer

A

a chain of linked repeating units

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7
Q

define monomer

A

single units that make up polymers

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8
Q

define elimination reaction

A

Atom / group in a molecule is removed from neighbouring atom forming a double bond

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9
Q

order carboxylic acid, water, phenol and alcohol in order of increasing acidity

A

alcohol, water, phenol, carboxylic acid

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10
Q

does carboxylic acid react with Na - what is formed

A

Na carboxylate + H2

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11
Q

does carboxylic acid react with NaOH - what is formed

A

Na carboxylate + H2O

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12
Q

does carboxylic acid react with Na2CO3 - what is formed

A

Na carboxylate + H2O + CO2 (effervescence)

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13
Q

does phenol react with Na - what is formed

A

Na phenoxide + H2

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14
Q

does phenol react with NaOH - what is formed

A

Na phenoxide + H2O

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15
Q

does phenol react with Na2CO3 - what is formed

A

Phenol DOES NOT react with Na2CO3

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16
Q

does alcohol react with Na - what is formed

A

sodium alcoxide + H2

17
Q

does alcohol react with NaOH - what is formed

A

Alcohol DOES NOT react with NaOH

18
Q

does alcohol react with Na2CO3 - what is formed

A

Alcohol DOES NOT react with Na2CO3

19
Q

define aliphatic

A

containing no benzene rings

20
Q

define aromatic

A

containing at least one benzene ring

21
Q

define unsaturated

A

containing one or more C=C bonds

22
Q

define saturated

A

containing only C-C bonds (no C=C bonds)

23
Q

define radical

A

a very reactive species with an unpaired electron

24
Q

define empirical formula

A

smallest whole number ratio of atoms in a molecule

25
Q

define molecular formula

A

true number of atoms in a molecule

OCR B Chemistry Alevel (2 decks)

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