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chemistry IGCSE > Flame And Precipitation Tests > Flashcards

Flame And Precipitation Tests Flashcards

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1
Q

Lithium flame test

A

Red

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2
Q

Sodium flame test

A

Yellow/orange

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3
Q

Potassium flame test

A

Lilac

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4
Q

Calcium flame test

A

Orange/red

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5
Q

Barium flame test

A

Light green

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6
Q

Chromium flame test

A

green

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7
Q

Copper flame test

A

Blue/green

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8
Q

Carbonate test

A

add dilute acid and test for carbon dioxide

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9
Q

nitrate test

A

add aluminium foil and sodium hydroxide, then test for ammonia

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10
Q

sulfate test

A

add dilute nitric acid, then barium nitrate, a white ppt should form (barium sulfate)

Or replace with HCl and BaNO3

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11
Q

sulfite test

A

add a dilute acid (HCl) and potassium manganate(VII), should turn from purple to colourless

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12
Q

chloride test

A

add dilute nitric acid, then add silver nitrate, should form white ppt

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13
Q

bromide test

A

add dilute nitric acid then add silver nitrate, should form cream ppt

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14
Q

iodine test

A

add dilute nitric acid, then add silver nitrate, should form yellow ppt

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15
Q

Aluminium NaOH test

A

white ppt, soluble in excess

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16
Q

ammonium NaOH test

A

no ppt, but ammonia is formed

17
Q

Calcium NaOH test

A

white ppt, insoluble in excess

18
Q

Chromium NaOH test

A

green ppt, soluble in excess

19
Q

copper NaOH test

A

light blue ppt, insoluble in excess

20
Q

Iron (II) NaOH tset

A

green ppt, insoluble in excess

21
Q

Iron (III) NaOH test

A

brown ppt, insoluble in excess

22
Q

Zinc NaOH test

A

white ppt, soluble in excess

23
Q

Aluminium NH3 test

A

white ppt, insoluble in excess

24
Q

Ammonium NH3 test

A

no reaction

25
Q

Calcium NH3 test

A

Little bit of white ppt

26
Q

Chromium NH3 test

A

grey green ppt, partially soluble in excess

27
Q

copper NH3 test

A

light blue ppt, soluble in excess, creating a deep blue solution

28
Q

Iron (II) NH3 test

A

Green ppt, insoluble in excess

29
Q

Iron (III) NH3 test

A

Brown ppt, insoluble in excess

30
Q

Zinc NH3 test

A

white ppt, soluble in excess

31
Q

Ammonia test

A

damp red litmus paper turns blue

32
Q

carbon dioxide test

A

bubble through limewater, from clear to milky

33
Q

chlorine test

A

bleaches any litmus paper, paper turns white

34
Q

hydrogen test

A

lighted splint makes a squeaky pop sound

35
Q

oxygen test

A

glowing splint relights

36
Q

sulfur dioxide

A

using aqueous potassium manganate(VII), from purple to colourless

chemistry IGCSE (17 decks)

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