Transition elements are often used as catalysts. Select the INCORRECT pairing of catalyst and process.
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Platinum in car exhausts
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Iron and Haber process
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Nickel and the hydrogenation of oils
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Manganese and the decomposition of hydrogen peroxide
Q.2.
Which of the following is NOT a property of the transition metals?
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Hard
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Malleable
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Good thermal conductor
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Low boiling point
Q.3.
Which transition metal is the 'odd one out'?
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Copper
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Mercury
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Gold
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Vanadium
Q.4.
Many of the properties of the transition metals are due to their electronic arrangement. How is this different to other metals?
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There is a partially filled electron shell between shells 2 and 3
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There is a partially filled electron shell between shells 1 and 2
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There is a partially filled electron shell between shells 3 and 4
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The innermost electron shell has 4 electrons in it
Q.5.
One alloy made from a transition element is bronze, produced from copper and tin. Bronze was used in the manufacture of swords. They were found to be much harder than swords made of pure copper or tin. Why are bronze swords harder than copper swords?
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In the pure element, the atoms are arranged in sheets where they can slide over each other. With bronze, the tin atoms prevent this from happening
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In the pure element, the atoms are arranged haphazardly and are hard to move
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In the pure element, the atoms are not able to move at all, but in the alloy, the atoms can move around
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The tin atoms in the alloy allow the copper atoms to move freely making the alloy really strong
Q.6.
Transition elements often form coloured compounds. Pick the correct colours for the following compounds.
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Iron (II) pale green
Iron (III) reddish brown
Copper (II) blue
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Iron (II) reddish brown
Iron (III) blue
Copper (II) green
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Iron (II) green
Iron (III) pale blue
Copper (II) brown
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Iron (II) dark blue
Iron (III) pale green
Copper (II) bright red
Q.7.
Many transition elements are mixed with other elements to form very useful alloys. Which of the following is NOT a correct mixture for a useful alloy?
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Copper and zinc to make brass
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Iron and carbon to make mild steel
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Iron and copper to make stainless steel
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Copper and tin to make bronze
Q.8.
Transition element compounds are often used as coloured pigments to stain glass and pottery. What colour does malachite (a copper compound) produce?
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Blue
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Green
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Red
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White
Q.9.
What does the Roman numeral in brackets after a transition element's name signify?
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The number of atoms in the compound
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The number of bonds formed
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The type of ion formed
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The number of atoms it is bonded with
Q.10.
Where on the periodic table are the transition elements found?
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On the right
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On the left
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In the middle
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At the bottom
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