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GCSE Chemistry > C10- Organic Reactions > Flashcards

C10- Organic Reactions Flashcards

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1
Q

Alkene General Formula

A

CnH2n

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2
Q

First 4 Alkenes

A

Ethene, Propene, Butene, Pentene

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3
Q

Test for products: CO2 & H2O

A

CO2: turns lime water cloudy
H2O: pops with lighted splint

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4
Q

Addition reaction of Alkenes: WHY?

A

C=C double bond makes them more reactive than Alkenes so take part in additions reactions

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5
Q

Addition reactions of Alkenes: HOW?

A

Atoms/molecules added to carbons either side of double bond

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6
Q

Addition of Halogens: HOW?

A

C2H4+Br2 ~ C2H4Br2

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7
Q

Addition of Hydrogen: WHY?

A

Adding hydrogen changes as unsaturated alkene into a saturated alkane (60 degrees and nickel catalyst)

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8
Q

Addition of Hydrogen: HOW?

A

Hydrogenation: reaction between pent-1-end and H2

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9
Q

Reaction with Water

A

Add water to alkene gives alcohol (high temp, high press & catalyst): ethene+water~ethanol

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10
Q

Alcohols: Function group, first four

A

-OH group

Ethanol, Propanol, Butanol, Pentanol

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11
Q

Carboxylic Acids: function group, first four

A

-COOH

Methanoic acid, Ethanoic acid, Propanoic acid, Butanoic acid

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12
Q

Esters: function group, only one

A

-COO-

Ethyl ethanoate

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13
Q

Manufacturing of ethanol

A

1) fermentation by yeast (anaerobic respiration)

2) hydration of ethene

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14
Q

Combustion of Ethanol

A

C2H5OH+3O2 ~ 2CO2+3H2O

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15
Q

Reaction with Sodium

A

sodium+ethanol ~ sodium ethoxide+ hydrogen

2Na+2C2H5OH ~ 2C2H5ONa+H2

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16
Q

Oxidation of ethanol to ethanoic acid

A

ethanol+oxidising agent ~ ethanoic acid+hydrogen

CH3CH2OH+2[O] ~ CH3COOH+H2O

17
Q

Reactions of Carboxylic Acid

A

Acid+Metal ~ Salt+Hydrogen
Acid+Base ~ Salt+Water
Acid+Carbonate ~ Salt+Water+Carbo Dioxide

18
Q

Carboxylic Acids: weak acids

A

Equilibrium: left
Pressure: no effect (same no of moles and not gases)
Dissacociate: not fully in water

19
Q

Making Esters: general reaction

A

Carboxylic acid+alcohol ~ ester+water

20
Q

Reactants for Combustion of Alkenes

A

Alkene and Oxygen

21
Q

Products of Combustion of Alkenes

A

Carbon dioxide and Water

GCSE Chemistry (15 decks)

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