Transition elements (ocr) quiz

Question 1 of 10

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A transitional element is a d block element that forms at least one ion with an incomplete d sub-shell.

Select one of the following:

  • True
  • False

Question 2 of 10

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the d-block elements would have filled their 4s orbitals before their 3d orbitals( the 4s sub-shell has a lower energy than the 3d sub-shell ).

Select one of the following:

  • True
  • False

Question 3 of 10

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chromium which is a transition metal has its 3d and 4s orbitals half-filled(4s1 3d5)

Select one of the following:

  • True
  • False

Question 4 of 10

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copper only one electron is in the 4s orbital but the 3d orbital is full

Select one of the following:

  • True
  • False

Question 5 of 10

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To form positive ions transition element atoms loose electrons from their 4s sub-shell before their 3d subshell.

Select one of the following:

  • True
  • False

Question 6 of 10

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Properties specific to transition metal compounds in result to of their electron configuration(partially filled d-orbitals):

Select one or more of the following:

  • exist as giant metallic lattices containing delocalised electrons which move to conduct electricity

  • shiny in appearance

  • catalyse chemical reactions

  • high density and melting point and boiling point

  • form coloured compounds

  • form compounds in which they have different oxidation states

Question 7 of 10

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transition metals from titanium to copper don't form the +2 oxidation state

Select one of the following:

  • True
  • False

Question 8 of 10

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KMnO4 is a purple solid used as a oxidising agent in redox titrations

Select one of the following:

  • True
  • False

Question 9 of 10

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important chemical reactions that are catalysed by transition metals or their compounds

Select one or more of the following:

  • Haber process

  • polymerisation

  • Hydrogenation of alkenes

  • acid hydrolysis

  • Contact process

  • Decomposition of hydrogen peroxide

Question 10 of 10

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All ligands are neutral

Select one of the following:

  • True
  • False
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Transition elements (ocr) quiz

suzan
Quiz by , created over 2 years ago

bits end pieces from the module that it is important to remember.

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suzan
Created by suzan over 2 years ago
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