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Chemistry OCR B Alevel > Memorise > Flashcards

Memorise Flashcards

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1
Q

What are the reaction conditions for nuclear fusion?

A

High temperature and pressure

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2
Q

What is formed when group 2 reacts with water?

A

Metal hydroxide and hydrogen

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3
Q

What is the trend in reactivity if group 2 with hydroxides?

A

Increase in reactivity

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4
Q

What is formed when group 2 reacts with oxygen?

A

Metal oxide

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5
Q

What is the trend in thermal stability of carbonates?

A

Increases down the group

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6
Q

What is formed when group 2 carbonates decompose?

A

Carbon dioxide and metal oxide

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7
Q

What is the trend in solubility of group 2 hydroxides?

A

Increase in solubility

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8
Q

That is the trend in solubility of group 2 carbonates?

A

Decreases down the group

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9
Q

Test for transition metals?

A

Sodium hydroxide

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10
Q

Test for carbonates?

A

HCl

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11
Q

Test for sulfates?

A

Barium chloride

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12
Q

Test for ammonia?

A

Red litmus paper turns blue

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13
Q

Test for halides?

A

Silver nitrate

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14
Q

ReCtion conditions of hydrogenation?

A

Nickel catalyst with heat and pressure

Platinum catalyst at room temperature

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15
Q

What are the reaction conditions for hydration of alkemes?

A

Concentrated h2so4
Steam
Heat and pressure

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16
Q

Appearance of the halogens at room temp?

A

Fluorine- pale yellow ga

Chlorine- yellow/green gas

Bromine - red/brown liquid

Iodine - shiny grey solid

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17
Q

What is the trend in reactivity if halogens?

A

Decreases in reactivity down the group

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18
Q

Colours of halogens in water?

A

Chlorine - colourless

Bromine- yellow/ orange

Iodine - brown

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19
Q

Colours of halogens in hexane?

A

Chlorine- colourless

Bromine - orange/ red

Iodine- violet

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20
Q

How to produce HBr and HI?

A

Phosphoric avid

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21
Q

HBr and sulfuric acid?

A

SO2

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22
Q

HI with sulfuric acid?

A

H2S

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23
Q

What is the trend in thermal stability of hydrogen halides?

A

Decreases

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24
Q

Hydrogen halides with ammonia?

A

Ammonium halide

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25
Q

Acidity of hydrogen halides?

A

All strong acids except fluorine as it doesn’t dissociate

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26
Q

What is the trend in booking points of haloalkanes?

A

Increases down the group

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27
Q

Nucleophillic substitution with water or hydroxides?

A

Alcohol

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28
Q

Nucleophillic substitution with ammonia?

A

Amines

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29
Q

What is the course of the trend in reactivity if haloalkanes?

A

Bond enthalpy

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30
Q

What is the trend in reactivity if haloalkanes?

A

Increase in reactivity

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31
Q

Phenols and alkali?

A

React to form salt and water

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32
Q

Phenol and carbonate?

A

No reaction

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33
Q

Carboxylic acid and carbonate?

A

ReCtion - fizzing

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34
Q

Phenol and acid anhydride?

A

Ester and a carboxylic acid

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35
Q

Test for phenol!

A

Iron iii chloride

Purple

36
Q

Formation of eaters from acohol?

A

Carboxylic acid with concentrated sulfuric or hydrochloride acid

37
Q

Primary alcohol distilled with acidified potassium dichromate?

A

Aldehyde

38
Q

Reflux of primary alcohol?

A

Carboxylic acid

39
Q

Oxidation of secondary alcohol?

A

Ketone

40
Q

Oxidation of tertiary alcohol?

A

Nothing

41
Q

How to dehydrate alcohols?

A

Heated aluminate or reflux with concentrated sulfuric acid to make an Allene

42
Q

what is the gradient in the arhennius equation?

A

-Ea/R

43
Q

what is the test for nitrate v?

A

warm with devardas alloy and NaOH

produces ammonia gas test with damp red litmus paper = blue

44
Q

what is the test for ammonium?

A

warm with NaOH
produces ammonia gas
damp red litmus paper blue

45
Q

what do you spray a chromatogram with?

A

ninhydrin solution

46
Q

reaction conditions to hydrolyse a protein?

A

hot aqeuous 6 molar HCl

47
Q

what is a pharmacophore?

A

drug that fits into the receptor site making it medicinally active

48
Q

why might a pharmocaphore not work?

A

not the right shape/size
dp-dp, hydrogen, ionic, IDID
orientation

49
Q

carboxylic acid +metal

A

metal ethanoate - carboxylate and hydrogen

50
Q

carboxylic acid + carbonate

A

carboxylate + water + CO2

51
Q

carboxylic acid +alkali

A

salt and water

52
Q

what are the conditions for hydrolysis of esters?

A

reflux with either moderately concentrated HCl or NaOH

53
Q

conditions for hydrolysis of amides?

A

reflux with moderately concentrated HCl(4M) or NaOH (2M)

54
Q

what is an acyl chloride?

A

COCl group

55
Q

what are optical isomers called?

A

enantiomers

56
Q

what are the two types of polymers?

A

addition and condensation

57
Q

nylonx,y what is x and what is y?

A

x=carbons of the diamine

y=carbons on the dicarboxylic acid

58
Q

how do enantiomers act differently?

A

rotate plain polarised light in opposite directions

form differen shapes so fit differently in active site

59
Q

what is a bronsted lowrey base?

A

accepts h+

60
Q

test for nitrate(v)

A

NaOH and devardas alloy and heat = ammonia gas

turns damp red litmus paper blue

61
Q

test for Cl-?

A

nitric acid and silver nitrate forms white ppt

soluble in dilute ammonia

62
Q

test for Br-?

A

nitric acid and silver nitrate forms cream ppt

soluble in concentrated ammonia and insoluble in dilute ammonia

63
Q

test for I-?

A

Nitric acid and silver nitrate forms yellow ppt

insoluble in conc and dilute ammonia

64
Q

test for sulphate (SO4)2-

A

Barium hydroxide forms white ppt

65
Q

test for carbonate (CO3)2-

A

HNO3 = fizzing

66
Q

test for hydroxide ions

A

pH paper

67
Q

what forms when Cu2+ reacts with CO3 2-?

A

green/blue ppt

68
Q

what forms when Fe2+ reavts with carbonate ions?

A

green ppt

69
Q

what happens when Fe3+ reacts with carbonate ions?

A

brown ppt

70
Q

what happens when Zn2+ reacts with carbonate ions

A

white ppt

71
Q

what happens when Ca 2+ reacts with carbonate ions?

A

white ppt

72
Q

what happens when barium ions react with carbonate ions?

A

white ppt

73
Q

what happens when Pb2+ reacts with carbonate ions

A

white ppt

74
Q

Hydroxide ions and alumninium ions?

A

white ppt dissolves in excess

75
Q

hydroxide ions and Cu2+

A

blue ppt

76
Q

hyrdoixde ions and Fe2+

A

dirty green ppt

77
Q

hydroxide ions and Fe3+

A

orange/brown ppt

78
Q

hydroxide ions and Zn2+

A

white ppt

79
Q

hydroxide ions and Ca2+

A

white ppt

80
Q

hydroxide ions and Ba2+

A

white ppt

81
Q

hydroxide ions and Pb2+

A

white ppt

82
Q

Ca2+ and SO4 2-

A

white ppt

83
Q

Ba 2+ and SO4 2-

A

white ppt

84
Q

Pb2+ and SO4 2-

A

white ppt

85
Q

Ag+ and SO42-

A

white ppt

86
Q

Pb2+ and I-

A

bright yellow ppt

Chemistry OCR B Alevel (14 decks)

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