Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Edexcel A-Level Chemistry > Chemical Tests > Flashcards

Chemical Tests Flashcards

1
Q

What is the test for halide ions?

A

Add HNO3 and then AgNo3 to produce a precipitate

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
1
Q

What colour precipitate do Chloride ions produce?

A

White

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

How does Chlorides precipitate disolve?

A

In dilute NH3

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What colour precipitate do Bromide ions produce?

A

Cream

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

How does Bromides precipitate disolve?

A

Concentrated NH3

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What colour precipitate do iodine ions produce?

A

Yellow

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

How does Iodines precipitate disolve?

A

Does not disolve in NH3

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is the test for ammonium (NH4)?

A

Add NaOH to produce NH3 (which can be tested)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is the test for NH3?

A

Red litmus Paper

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is a positive test result for NH3?

A

Turns red litmus paper Blue

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is the test for carbonates (CO3^2-)?

A

Add HCl to produce CO2 (which can be tested)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is the test for CO2?

A

Bubbling through Lime Water

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is a positive test for CO2?

A

Turns Lime Water Cloudy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is the test for Sulphate ions (SO4^2-)?

A

Add BaCl2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is the positive test for Sulphate Ions?

A

A white precipitate of barium sulphate (BaSO4)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is the test for alcohols?

A

Add PlCl5
or Acidified Potassium Dicromate

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is the positive test for PlCl5 alcohol test?

A

Steamy white fumes of HCl

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What is the positive test for alcohols using accidified potassium dichromate?

A

Orange to green colour change

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What is the test for alkenes?

A

Bromine water

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What is the positive test for alkenes?

A

Bromine water goes from Orange to colourless

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Whats the test for haloalkanes?

A

Dissolve in ethanol, add water, do the halide test as normal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

What is the test for Aldehydes and Ketones (Carbonyl Group)?

A

Bradys Reagent/2-4 DNPH

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

What is a positive result for a carbonyl group with 2-4 DNPH?

A

Orange Precipitate

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

What is the test for Aldehydes?

A

Tollen’s Reagent.
Fheling’s Solution

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
What is the positive result for Tollen's Test?
Silver Mirror
25
Whats the positive result for Fheling's Reagent?
Red precipitate
26
What is the test for Methyl Ketones?
Iodoform Test: Add NaOH and I2
27
What is a positive result for the iodoform test?
Yellow Precipitate (CHI3 iodoform (antiseptic smell))
28
What is the test for Carboxylic acids?
PCl5
29
What is the positive result for the test for Carboxylic Acids?
Steamy White Fumes (HCl)
30
What is the test for Benzene?
Bromine water. Combustion.
31
What is the positive result for Benzene in Bromine Water?
No colour Change (Not a good test)
32
What is the positive result for benzene with combustion?
Sooty Flame
33
What is the test for esters?
No easy one
34
What is the test for amides?
No easy one
35
What flame test colour is Lithium?
Red
36
What flame test colour is Sodium?
Yellow
37
What flame test colour is Potassium?
Lilac
38
What flame test colour is Rubidium?
Red/Purple
39
What flame test colour is Caesium?
Blue/Violet
40
What flame test colour is Beryllium?
NO COLOUR
41
What flame test colour is Magnesium?
NO COLOUR
42
What is the flame test colour for Calcium?
(brick) Red
43
What is the flame test colour for strontium?
(crimson) Red
44
What is the flame test colour for Barium?
(apple) Green
45
What colour is Ti(3+) ion?
Purple
46
What colour is Ti(2+) ion?
Violet
47
What colour is VO2(+) ion?
Yellow
48
What colour is VO(2+) ion?
Blue
49
What colour is V(3+) ion?
Green
50
What colour is V(2+) ion?
Violet
51
What colour is Cr2O7(2-) ion?
Orange
52
What colour is Cr(3+) ion?
Green
53
What colour is MnO4(-) ion?
Purple
54
What colour is MnO4(2-) ion?
Green
55
What colour is Mn(2+) ion?
Pale Pink
56
What colour is Fe(3+) ion?
Yellow
57
What colour is Fe(2+) ion?
Pale Green
58
What colour is Co(2+) ion?
Pink
59
What colour is Ni(2+) ion?
Green
60
What colour is Cu(2+) ion?
Pale Blue

Edexcel A-Level Chemistry (9 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions