tests Flashcards

1
Q

oxygen

A

glowing splint-relights

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2
Q

hydrogen

A

burning splint-squeaky pop

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3
Q

carbon dioxide

A

bubbled through limewater-turns milky white

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4
Q

chlorine

A

damp blue litmus paper-bleaches

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5
Q

lithium flame test

A

crimson

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6
Q

sodium flame test

A

yellow

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7
Q

potassium flame test

A

lilac

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8
Q

calcium flame test

A

orange-red

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9
Q

copper flame test

A

green

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10
Q

aluminium sodium hydroxide test

A

white precipitate redissolves when excess alkali is added

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11
Q

calcium sodium hydroxide test

A

white precipitate

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12
Q

magnesium sodium hydroxide test

A

white precipitate

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13
Q

copper sodium hydroxide test

A

light blue solid precipitate

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14
Q

iron(II) sodium hydroxide test

A

green precipitate

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15
Q

iron(III) sodium hydroxide test

A

brown suspended precipitate

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16
Q

halide test

A

add dilute nitric acid then silver nitrate

17
Q

chloride halide test

A

white precipitate

18
Q

bromide halide test

A

cream precipitate

19
Q

iodide halide test

A

yellow precipitate

20
Q

sulfate test method

A

add dilute hydrochloric acid then barium chloride

21
Q

sulphate test posotive result

A

white precipitate

22
Q

carbonate test method

A

add dilute acid then collect gas and test with limewater

23
Q

carbonate test result

A

fizzing. limewater turns milky white

24
Q

test for alkenes

A

bromine water

25
Q

alkene test result

A

brown to colourless