Other Chemical Tests Flashcards

1
Q

What is the test for H2 gas?

A

Apply a lit splint

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2
Q

What is the result of the test for H2 gas?

A

A squeaky ‘pop’ occurs

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3
Q

What is the test for CO2 gas?

A

Bubble through limewater

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4
Q

What is the result of the test for CO2 gas?

A

Solution turns cloudy

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5
Q

What is the test for O2 gas?

A

Apply a glowing splint

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6
Q

What is the result of the test for O2 gas?

A

The splint will re-light

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7
Q

What is the test for SO4 2- ions?

A

Add BaCl2 solution

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8
Q

What is the result of the test for SO4 2- ions?

A

A white ppt will form

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9
Q

What is the test for halide ions?

A

Add HNO3 then AgNO3

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10
Q

What is the result of the test for halide ions?

A

White ppt = Cl- ions present which will dissolve in dilute ammonia Cream ppt = Br- ions present which will only dissolve in conc ammonia Yellow ppt = I- ions present which is insoluble in ammonia

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11
Q

What is the test for CO3 2- ions?

A

Add any acid

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12
Q

What is the result of the test for CO3 2- ions?

A

Effervescence (as CO2 is given off)

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