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WorksheetsPractice for d-block
Total questions: 20
Worksheet time: 32mins
Match the metals with their maximum oxidation states!
manganese
+7
chromium
+6
vanadium
+5
titanium
+4
iron
+3
The metals of the iron triad are known for being (a) . The outsider in the triad is (b) because of the (c) of its (d) ion.
The metals of the iron triad are very (a) each other. They (b) react with dilute acids producing (c) and (d) react with concentrated oxidising acids due to (e) .
Colours of aqueous solutions
ferric ions
yellow
ferrous ions
green
chromium (III) ions
blue
Manganese (II) ions
colourless
cobalt (II)
ions
pink - red
Colours of aqueous solutions
iron (III) ions
orange
"manganese (VII) ions"
violet
copper (II) ions
blue
zinc ions
colourless
nickel (II)
ions
green
Pick those ores of iron which have +2 ion in them
haematite
magnetite
limonite
syderite
pyrite
Pick those ores of iron which have +3 ion in them
haematite
magnetite
chalcopyrite
syderite
pyrite
Give the formula of the substance that is responsible for heating up the blast furnace!
(a)
Give the formula of the substance that acts as the reactant in the blast furnace!
(a)
Give the formula of the substance that is used for making slag in the blast furnace!
(a)
What is the maximum percent of carbon allowed in steel?
(a)
What is the average percent of carbon in cast iron?
(a)
What is the average percent of carbon in wrought iron?
(a)
Pick the properties of zinc!
Dissolves in HCl(aq)
Dissolves in cc. HNO3(aq)
Dissolves in water
Dissoves in NaOH(aq)
protective oxide layer
Pick the properties of copper!
Dissolves in HCl(aq)
Dissolves in cc. HNO3(aq)
Dissolves in water
Dissoves in NaOH(aq)
protective oxide layer
Pick the properties of silver!
Dissolves in HCl(aq)
Dissolves in cc. HNO3(aq)
Dissolves in water
Dissoves in NaOH(aq)
protective oxide layer
Name the solvent for silver
(a)
Name the solvent for gold
(a)
One of the 2 most efficient solvents for metals is a mixture of (a) and (b) (both of the solutions must be (c) ) in a ratio of (d) . The other is a special liquid (e) .
Give the colours of Mn-compounds by decreasing oxidation state!
violet
green
black
orange-brown
rose quartz
