Tests For Gases Flashcards

1
Q

Hydrogen

A

Put a lot splint into a sample of the gas

Burns with a pop

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2
Q

Oxygen

A

Put a glowing splint into a sample of the gas

Splint relights

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3
Q

Chlorine

A

Damp universal indicator or litmus paper

Turns red then (bleaches)

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4
Q

Sulfur dioxide

A

Filter paper dipped in acidified potassium dichromate (VI) solution

Orange –> green

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5
Q

Ammonia

A

Damp universal indicator paper –> turns blue

Glass rod dipped in concentrated HCL
–> misty fumes

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6
Q

Hydrogen chloride (HCL)

A

Damp UI paper -> turns red

Glass rod dipped in conc ammonia solution –> misty fumes

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7
Q

Carbon dioxide

A

Pass through limewater (calcium hydroxide solution)

Limewater turns colourless to milky but if CO2 is in excess milky ppt redisolves to give a clear solution

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