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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
Acidity of hydrogen halides?
All strong acids except fluorine as it doesn’t dissociate
26
What is the trend in booking points of haloalkanes?
Increases down the group
27
Nucleophillic substitution with water or hydroxides?
Alcohol
28
Nucleophillic substitution with ammonia?
Amines
29
What is the course of the trend in reactivity if haloalkanes?
Bond enthalpy
30
What is the trend in reactivity if haloalkanes?
Increase in reactivity
31
Phenols and alkali?
React to form salt and water
32
Phenol and carbonate?
No reaction
33
Carboxylic acid and carbonate?
ReCtion - fizzing
34
Phenol and acid anhydride?
Ester and a carboxylic acid
35
Test for phenol!
Iron iii chloride Purple
36
Formation of eaters from acohol?
Carboxylic acid with concentrated sulfuric or hydrochloride acid
37
Primary alcohol distilled with acidified potassium dichromate?
Aldehyde
38
Reflux of primary alcohol?
Carboxylic acid
39
Oxidation of secondary alcohol?
Ketone
40
Oxidation of tertiary alcohol?
Nothing
41
How to dehydrate alcohols?
Heated aluminate or reflux with concentrated sulfuric acid to make an Allene
42
what is the gradient in the arhennius equation?
-Ea/R
43
what is the test for nitrate v?
warm with devardas alloy and NaOH | produces ammonia gas test with damp red litmus paper = blue
44
what is the test for ammonium?
warm with NaOH produces ammonia gas damp red litmus paper blue
45
what do you spray a chromatogram with?
ninhydrin solution
46
reaction conditions to hydrolyse a protein?
hot aqeuous 6 molar HCl
47
what is a pharmacophore?
drug that fits into the receptor site making it medicinally active
48
why might a pharmocaphore not work?
not the right shape/size dp-dp, hydrogen, ionic, IDID orientation
49
carboxylic acid +metal
metal ethanoate - carboxylate and hydrogen
50
carboxylic acid + carbonate
carboxylate + water + CO2
51
carboxylic acid +alkali
salt and water
52
what are the conditions for hydrolysis of esters?
reflux with either moderately concentrated HCl or NaOH
53
conditions for hydrolysis of amides?
reflux with moderately concentrated HCl(4M) or NaOH (2M)
54
what is an acyl chloride?
COCl group
55
what are optical isomers called?
enantiomers
56
what are the two types of polymers?
addition and condensation
57
nylonx,y what is x and what is y?
x=carbons of the diamine | y=carbons on the dicarboxylic acid
58
how do enantiomers act differently?
rotate plain polarised light in opposite directions form differen shapes so fit differently in active site
59
what is a bronsted lowrey base?
accepts h+
60
test for nitrate(v)
NaOH and devardas alloy and heat = ammonia gas | turns damp red litmus paper blue
61
test for Cl-?
nitric acid and silver nitrate forms white ppt soluble in dilute ammonia
62
test for Br-?
nitric acid and silver nitrate forms cream ppt soluble in concentrated ammonia and insoluble in dilute ammonia
63
test for I-?
Nitric acid and silver nitrate forms yellow ppt insoluble in conc and dilute ammonia
64
test for sulphate (SO4)2-
Barium hydroxide forms white ppt
65
test for carbonate (CO3)2-
HNO3 = fizzing
66
test for hydroxide ions
pH paper
67
what forms when Cu2+ reacts with CO3 2-?
green/blue ppt
68
what forms when Fe2+ reavts with carbonate ions?
green ppt
69
what happens when Fe3+ reacts with carbonate ions?
brown ppt
70
what happens when Zn2+ reacts with carbonate ions
white ppt
71
what happens when Ca 2+ reacts with carbonate ions?
white ppt
72
what happens when barium ions react with carbonate ions?
white ppt
73
what happens when Pb2+ reacts with carbonate ions
white ppt
74
Hydroxide ions and alumninium ions?
white ppt dissolves in excess
75
hydroxide ions and Cu2+
blue ppt
76
hyrdoixde ions and Fe2+
dirty green ppt
77
hydroxide ions and Fe3+
orange/brown ppt
78
hydroxide ions and Zn2+
white ppt
79
hydroxide ions and Ca2+
white ppt
80
hydroxide ions and Ba2+
white ppt
81
hydroxide ions and Pb2+
white ppt
82
Ca2+ and SO4 2-
white ppt
83
Ba 2+ and SO4 2-
white ppt
84
Pb2+ and SO4 2-
white ppt
85
Ag+ and SO42-
white ppt
86
Pb2+ and I-
bright yellow ppt

Chemistry OCR B Alevel (14 decks)

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