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IGCSE SCIENCE REVISION > Cation/Anion/Gas/Flame Test > Flashcards

Cation/Anion/Gas/Flame Test Flashcards

(22 cards)

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1
Q

Anion: Chloride

A

Test: Add dilute nitric acid, then silver nitrate solution
Result:White precipitate (AgCl)

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2
Q

Anion: Carbonate

A

Test: Add dilute nitric acid
Result: Effervesence

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3
Q

Anion: Bromide (Br⁻)

A

Test: Add dilute nitric acid, then silver nitrate solution
Result: Cream precipitate (AgBr)

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4
Q

Anion: Iodide (I⁻)

A

Test: Add dilute nitric acid, then silver nitrate solution
Result: Yellow precipitate (AgI)

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5
Q

Anion: Sulfate (SO₄²⁻)

A

Test: Add dilute nitric acid, then barium chloride solution
Result: White precipitate (BaSO₄)

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6
Q

Anion: Nitrate (NO₃⁻)

A

Test: Add iron(II) sulfate, then concentrated sulfuric acid
Result: Ammonia Gas forms

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7
Q

Cation: Ammonium (NH₄⁺)

A

Test with sodium hydroxide: Ammonia gas evolved on heating
Test with ammonium hydroxide: Ammonia gas evolved on heating

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8
Q

Cation: Calcium (Ca²⁺)

A

Test with sodium hydroxide: White precipitate (Ca(OH)₂)
Test with ammonium hydroxide: No precipitate

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9
Q

Cation: Copper(II) (Cu²⁺)

A

Test with sodium hydroxide: Blue precipitate (Cu(OH)₂)
Test with ammonium hydroxide: Blue precipitate (Cu(OH)₂)

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10
Q

Cation: Iron(II) (Fe²⁺)

A

Test with sodium hydroxide: Green precipitate (Fe(OH)₂)
Test with ammonium hydroxide: Green precipitate (Fe(OH)₂)

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11
Q

Cation: Iron(III) (Fe³⁺)

A

Test with sodium hydroxide: Brown precipitate (Fe(OH)₃)
Test with ammonium hydroxide: Brown precipitate (Fe(OH)₃)

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12
Q

Cation: Zinc

A

Test with sodium hydroxide: White ppt
Test with ammonium hydroxide: White ppt

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13
Q

Gas: Hydrogen (H₂)

A

Test: Lit splint held at opening of tube
Result: Squeaky pop sound

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14
Q

Gas: Oxygen (O₂)

A

Test: Glowing splint held at opening of tube
Result: Splint relights

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15
Q

Gas: Carbon Dioxide (CO₂)

A

Test: Bubble through limewater
Result: Limewater turns milky

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16
Q

Gas: Chlorine (Cl₂)

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A

Test: Damp litmus paper
Result: Bleaches paper (turns white)

17
Q

Gas: Ammonia (NH₃)

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A

Test: Red litmus paper
Result: Turns blue

18
Q

Gas: Sulfur Dioxide (SO₂)

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A

Test: Pass gas through acidified potassium solution
Result: Solution turns from purple to colourless

19
Q

Flame Test: Lithium

20
Q

Flame Test: Sodium

21
Q

Flame Test: Potassium

22
Q

Flame Test: Copper

IGCSE SCIENCE REVISION (2 decks)

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