Tests Flashcards by Patrick Weston | Brainscape

Q

Test for hydrogen

A

lit splint burns gas with squeaky pop

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Q

test for oxygen

A

glowing splint relights

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Q

test for carbon dioxide

A

bubble through limewater, becomes cloudy

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Q

test for ammonia

A

damp litmus goes blue

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Q

test for chlorine

A

damp red litmus bleaches

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Q

lithium flame test colour

A

red

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Q

sodium flame test colour

A

yellow

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Q

potassium flame test colour

A

lilac

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Q

calcium flame test colour

A

orange-red

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Q

copper flame test colour

A

blue-green

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Q

test for ammonium (NH4+)

A

use sodium hydroxide and identify the gas evolved

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Q

test for copper, iron(II) and iron(III)

A

sodium hydroxide solution

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Q

test for water

A

anhydrous copper(II) sulphate turns blue from white

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