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WorksheetsChemical Tests
Total questions: 24
Worksheet time: 13mins
what colour does anhydrous copper (II) sulfate turn in the presence of water?
cream
grey
white
blue
what colour flame does lithium emit?
bright yellow
crimson red
cobalt blue
rust coloured
copper emits a...flame
(a)
what is the test for hydrogen?
blowing bubbles in limewater to produce H2
a glowing splint suspended in a test tube reigniting the flame
lit splint in a test tube producing a squeaky 'pop' sound
glowing splint in a test tube producing a squeaky 'pop' sound
what flame does potassium produce?
rust
crimson
lavender
lilac
what colour does sodium emit?
cream
yellow
blue-green
lilac
which is correct for the chlorine test?
damp blue litmus paper is placed in a test tube and turns red then white
damp red litmus paper turns purple
damp red litmus paper turns blue
blue-green litmus paper turns red then white
which is correct for the Ammonia test?
damp red litmus paper turns blue
red litmus paper turns green and then blue
damp purple litmus paper turns green
none of the above
what does anhydrous mean?
lacks oxygen
lack of hydration
lack of water of crystallisation
lacks H20
chloride ions produce a...precipitate
cream
white
yellow
rust
bromide ions form a...precipitate
yellow
lilac
cream
grey
iodide ions form a...precipitate
yellow
cream
white
sky blue
what is substances are used for the testing of sulphates?
HCI and barium sulfate
hydrochloric acid and barium chloride
nitric acid and barium nitrate
silver bromide and silver nitrate
what happens to lime water in the presence of CO2
turns cloudy and grey
turns milky and cloudy
turns purple
turns colourless
what colour flame does calcium turn?
crimson
lilac
orange-red
yellow
a positive ion
anion
cation
ion
which of these is soluble?
sodium carbonate
ammonium carbonate
silver chloride
barium sulfate
what is the correct equation for the reaction of metals with acids?
Metal + Acid —> Salt + Hydrogen
Metal + Acid —> Salt + oxygen
Metal + HCI —> Salt + Hydrogen
Metal + Acid —> water + Hydrogen
a yellow precipitate formed when silver nitrate is added to a solution, what solution is this?
sulfide
iodide
chloride
potassium
what are the substances that enter a chemical reaction called?
substances
reactants
solution
products
what are the substances that result in a chemical reaction called?
reactants
products
solution
reaction
sodium hydroxide solution reacts with ... to form a blue precipitate
copper
calcium
caesium
iron (II)
what is the chemical equation for iron (III) reacting with sodium hydroxide solution
Fe(OH^3)
Fe(OH^4)
Fe(OH)
Fe(OH^2)
why does limewater turn milky when reacting with a metal?
the metal precipitate forms
because carbon dioxide is present
because oxygen is present
because the solution is pure
