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Chemistry > Inorganic Chemistry > Flashcards

Inorganic Chemistry Flashcards

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1
Q

Chlorine with cold NaOH (alkali)

A

NaOCl + NaCl + H2O

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2
Q

Chlorine with hot NaOH (alkali)

A

3Cl2 + 6NaOH -> NaClO3 + 5NaCl + 3H2O

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3
Q

What is the test for halogens?

A

Dilute nitric acid and silver nitrate solution
Then ammonia solution to test for solubility

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4
Q

What result would you get for chlorine in halide test?

A

White ppt
AgCl dissolves in dilute ammonia

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5
Q

What result would you get for bromine in halide test?

A

Cream ppt
AgBr dissolves in conc ammonia

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6
Q

What result would you get from iodine in halide test?

A

Yellow ppt
AgI doesn’t dissolve in conc

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7
Q

What is the test for sodium halides and result?

A

Add sulphuric acid
NaCl = misty fumes
NaBr= brown fumes
NaI= purple fumes

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8
Q

What is the test for carbonate ions and result?

A

Add dilute HCl
see if gas produced is CO2 by limewater

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9
Q

What is the test for sulfate ions and result?

A

Add dilute HCl (to remove carbonate ion) then barium chloride solution
Produces white ppt of barium sulfate

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10
Q

What is the test for ammonium ions and result?

A

warm with aqueous NaOH
Gas produced will turn damp litmus paper from red to blue

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11
Q

Na flame test colour

A

orange

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12
Q

Li flame test colour

A

red

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13
Q

K flame test colour

A

purple

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14
Q

Rb flame test colour

A

red

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15
Q

Cs flame test colour

A

blue

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16
Q

Ca flame test colour

A

brick red

17
Q

Sr flame test colour

A

crimson

18
Q

Ba flame test colour

A

green

19
Q

Mg flame test colour

A

no colour

20
Q

Be flame test colour

A

no colour

21
Q

What does group 2 metal + water produce

A

metal hydroxide and hydrogen

22
Q

What can both group 2 oxides and hydroxides act as

A

bases

23
Q

What is the trend is solubility of group 2 hydroxides and sulfates

A

hydroxides increase in solubility down the group
sulfates decrease in solubility down the group

24
Q

What do group two (+Li) carbonates thermally decompose to produce?

A

oxide and CO2

25
Q

What do group two (+ Li) nitrates thermally decompose to produce?

A

oxide +nitrogen dioxide + O2

26
Q

What do group one nitrates thermally decompose to produce?

A

nitrite + O2

27
Q

What do group 1 carbonates thermally decompose to produce?

A

they dont

28
Q

What are the colours of Cl2 in H2O and hexane?

A

colourless

29
Q

What are the colours of Br2 in H2O and hexane?

A

Yellow in H2O
Orange in hexane

30
Q

What are the colours of I2 in H2O and hexane?

A

Brown in H2O
Purple in Hexane

30
Q

What are the colours of I2 in H2O and hexane?

A

Brown in H2O
Purple in Hexane

31
Q

Cl2 + H2O

A

HCl + HCLO- which is a disinfectant as when this reacts with H2O it form ClO- which kills bacteria

31
Q

Cl2 + H2O

A

HCl + HCLO- which is a disinfectant as when this reacts with H2O it form ClO- which kills bacteria

Chemistry (6 decks)

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