Tests Flashcards

1
Q

Sodium hydroxide in aluminium

A

White precipitate, dissolves in excess forming a colourless solution

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2
Q

Sodium hydroxide in ammonium

A

Ammonia gas given of on warming, turns damp litmus paper blue

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3
Q

Sodium hydroxide in calcium

A

White precipitate, insoluble in excess

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4
Q

Sodium hydroxide in copper

A

Light blue precipitate, insoluble in excess

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5
Q

Sodium hydroxide in iron 2+

A

Green precipitate, insoluble in excess

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6
Q

Sodium hydroxide in iron 3+

A

Brown precipitate, insoluble in excess

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7
Q

Sodium hydroxide in zinc

A

White precipitate, dissolves in excess forming a colourless solution

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8
Q

Aqueous ammonia in aluminium

A

White precipitate, insoluble in excess

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9
Q

Aqueous ammonia in ammonium

A

none

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10
Q

Aqueous ammonia in calcium

A

No precipitate or very faint white precipitate

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11
Q

Aqueous ammonia in copper

A

light blue precipitate, dissolves in excess to give a deep blue solution

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12
Q

Aqueous ammonia in iron 2+

A

Green precipitate, insoluble in excess

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13
Q

Aqueous ammonia in iron 3+

A

Brown precipitate, insoluble in excess

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14
Q

Aqueous ammonia in zinc

A

White precipitate, dissolves in excess forming a colourless solution

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15
Q

Test for carbonate

A

add dilute hydrochloric acid

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16
Q

Result for carbonate

A

Effervescence, carbon dioxide is given off, limewater goes milky

17
Q

Test for chloride

A

Add excess dilute nitric acid and then aqueous silver nitrate

18
Q

Test for iodide

A

Add excess dilute nitric acid and then aqueous silver nitrate

19
Q

Test for nitrate

A

Warm with aqueous sodium hydroxide and aluminium foil

20
Q

Result for chloride

A

White precipitate

21
Q

Result for iodide

A

Yellow precipitate

22
Q

Result for nitrate

A

Ammonia given off, pungent smell, turns red litmus paper blue

23
Q

Test for sulphate

A

Add excess hydrochloric acid and barium sulphate

24
Q

result for sulphate

A

White precipitate

25
Q

test for ammonia

A

Turns damp red litmus paper blue

26
Q

Test for carbon dioxide

A

Turns limewater milky

27
Q

Test for chlorine

A

Bleaches damp litmus paper

28
Q

Test for hydrogen

A

Gives a pop sound in an ignited splint

29
Q

Test for oxygen

A

Relights a glowing splint

30
Q

Flame test for lithium

A

Crimson

31
Q

Flame test for sodium

A

Yellow

32
Q

Flame test for ptassium

A

Lilac

33
Q

Flame test for calcium

A

Orange red

34
Q

Flame test for copper

A

green