Testing and Recognising Ions

Question 1

Charge and symbol: Lithium

Answer 1

+1

Li+

Question 2

Charge and symbol: sodium

Answer 2

+1

Na+

Question 3

Charge and symbol: potassium

Answer 3

+1

K+

Question 4

Charge and symbol: hydrogen

Answer 4

+1

H+

Question 5

Charge and symbol: silver

Answer 5

+1

Ag+

Question 6

Charge and symbol: ammonium

Answer 6

+1

NH4 +

Question 7

Charge and symbol: calcium

Answer 7

+2

Ca 2+

Question 8

Charge and symbol: magnesium

Answer 8

+2

Mg 2+

Question 9

Charge and symbol: barium

Answer 9

+2

Ba 2+

Question 10

Charge and symbol: copper(ii)

Answer 10

+2

Cu 2+

Question 11

Charge and symbol: zinc

Answer 11

+2

Zn 2+

Question 12

Charge and symbol: iron(ii)

Answer 12

+2

Fe 2+

Question 13

Charge and symbol: lead (ii)

Answer 13

+2

Pb 2+

Question 14

Charge and symbol: aluminium

Answer 14

+3

Al 3+

Question 15

Charge and symbol: iron(ii)

Answer 15

+3

Fe 3+

Question 16

Charge and symbol: fluoride

Answer 16

-1

F-

Question 17

Charge and symbol: chloride

Answer 17

-1

Cl-

Question 18

Charge and symbol: bromide

Answer 18

-1

Br-

Question 19

Charge and symbol: iodide

Answer 19

-1

I-

Question 20

Charge and symbol: hydroxide

Answer 20

-1

OH-

Question 21

Charge and symbol: nitrate

Answer 21

-1

NO3-

Question 22

Charge and symbol: oxide

Answer 22

-2

O 2-

Question 23

Charge and symbol: sulphide

Answer 23

-2

S 2-

Question 24

Charge and symbol: carbonate

Answer 24

-2

CO3 2-

Question 25

Charge and symbol: sulphate

Answer 25

-2 | SO4 2-

Question 26

Charge and symbol: sulphite

Answer 26

-2 | S 2-

Question 27

Solid flame test: Lithium

Answer 27

scarlet red

Question 28

Solid flame test: sodium

Answer 28

orange

Question 29

Solid flame test: potassium

Answer 29

lilac

Question 30

Solid flame test: calcium 2+

Answer 30

brick red

Question 31

Solutions (addition of NaOH to solution): iron 2+

Answer 31

green

Question 32

Solutions (addition of NaOH to solution): iron 3+

Answer 32

orange/brown

Question 33

Solutions (addition of NaOH to solution): copper

Answer 33

blue

Question 34

Solutions (addition of NaOH to solution): ammonium

Answer 34

no precipitate but ammonia smell

Question 35

Halide test (addition of nitric acid and silver nitrate to solution): chloride

Answer 35

white pp

Question 36

Halide test (addition of nitric acid and silver nitrate to solution): bromide

Answer 36

cream pp

Question 37

Halide test (addition of nitric acid and silver nitrate to solution): iodide

Answer 37

yellow pp

Question 38

sulphate test (addition of HCl and barium chloride to solution): sulphate

Answer 38

white pp

Question 39

carbonate test (addition of HCl then bubble the gas through limewater): carbonate

Answer 39

effervescing (fizzing) | limewater goes cloudy

Question 40

how to make and test for: oxygen

Answer 40

hydrogen peroxide and manganese oxide | relights a glowing splint

Question 41

how to make and test for: carbon dioxide

Answer 41

hydrochloric/sulphuric acid and metal (calcium usually) carbonate makes limewater go cloudy

Question 42

how to make and test for: hydrogen

Answer 42

hydrochloric/sulphuric acid and metal more reactive than hydrogen squeaky pop when lit splint is in presence of hydrogen

Question 43

how to test for ammonia

Answer 43

damp red litmus paper turns blue

Question 44

who to test for chlorine

Answer 44

damp litmus (any colour) gets bleached

Question 45

colour in acid/neutral/alkali solution: litmus

Answer 45

stays red/turns red stays colour stays blue/turns blue

Question 46

colour in acid/neutral/alkali solution: methyl orange

Answer 46

red yellow yellow

Question 47

colour in acid/neutral/alkali solution: phenolphthalein

Answer 47

colourless colourless pink