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Chemistry - Y12 > Test-Tube Tests > Flashcards

Test-Tube Tests Flashcards

1
Q

What does bromine water test for?

A

Alkenes

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2
Q

Whats the reagent to test for alkenes?

A

Bromine water

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3
Q

Observation to test for alkenes?

A

Orange to Colourless

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4
Q

What does Acidified Potassium Dichromate test for?

A

1°,2° alcohols, aldehydes

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5
Q

Whats the reagent to test for 1°,2° alcohols, aldehydes?

A

Acidified Potassium Dichromate

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6
Q

Observation to test for 1°,2° alcohols, aldehydes?

A

Orange to Green

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7
Q

What does Tollen’s reagent test for?

A

Aldehydes

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8
Q

What does Fehling’s reagent test for?

A

Aldehydes

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9
Q

What does Sodium carbonate test for?

A

Carboxylic acids

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10
Q

Whats the reagent to test for aldehydes?

A

Tollen’s/Fehling’s reagent

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11
Q

Whats the reagent to test for carboxylic acids?

A

Sodium Carbonate

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12
Q

Observation to test for aldehydes with Tollen’s reagent?

A

Silver mirror

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13
Q

Observation to test for aldehydes with Fehling’s reagent?

A

Brick-red precipitate forms

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14
Q

Observation to test for carboxylic acids?

A

Effercescence

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15
Q

Reagents used to test for Ba2+?

A

H2SO4

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16
Q

Reagents used to test for SO42-?

A

Acidified BaCl2

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17
Q

Reagents used to test for Mg2+?

A

NaOH

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18
Q

Reagents used to test for OH-?

A

MgCl2

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19
Q

Reagents used to test for Cl-?

20
Q

Reagents used to test for Br-?

21
Q

Reagents used to test for I-?

22
Q

Reagents used to test for AgCl?

A

Dilute NH3

23
Q

Reagents used to test for AgBr?

24
Q

Reagents used to test for NH4+?

A

NaOH & heat

25
Q

Observation for Ba+?

A

White precipitate

26
Q

Observation for SO42-?

A

White precipitate

27
Q

Observation for Mg2+?

A

White precipitate

28
Q

Observation for Cl-?

A

White precipitate

29
Q

Observation for Br-?

A

Cream precipitate

30
Q

Observation for I-?

A

Yellow precipitate

31
Q

Observation for AgCl?

A

AgCl precipitate dissolves

32
Q

Observation for AgBr?

A

AgBr precipitate dissolves

33
Q

Observation for NH4+?

A

Gas released turns damp red litmus paper blue

34
Q

Ionic equation when testing for Ba2+ or SO42-?

35
Q

Ionic equation when testing for Mg2+ or OH-?

36
Q

Ionic equation when testing for Cl-?

37
Q

Ionic equation when testing for Br-?

38
Q

Ionic equation when testing for AgCl?

39
Q

Ionic equation when testing for AgBr?

40
Q

Ionic equation when testing for NH4+?

41
Q

Reagents used to test for CO32-?

A

Any acid (e.g. HNO3, H2SO4)

42
Q

Observation for CO32-?

A

Effervescence

43
Q

Ionic equation when testing for CO32-?

44
Q

TRANSITION METALS?

45
Q

How to test for CO2 present?

A

When CO2 gas bubbled through limewater, white precipitate formed

Chemistry - Y12 (18 decks)

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