Worksheetsd Block Metals II
Total questions: 12
Worksheet time: 7mins
Here are some electron configurations:
1) Cu = [Ar] 3d94s2
2) Cr = [Ar] 3d54s1
3) Mn2+ = [Ar] 3d5
Which ones are correct?
1 and 3 only
2 only
2 and 3 only
1, 2 and 3
Aqueous Fe3+ ions are reacted with an excess of aqueous sodium hydroxide. What is the product formed ?
[Fe(OH)6]3-
Fe(OH)3(H2O)3
[Fe(OH)4(H2O)2]-
[Fe(OH)4]3-
VO2+ ions can be reduced to V2+ ions using zinc metal in aqueous solution. In addition to VO2+, how many coloured ions containing vanadium are produce over the course of the reduction reactions?
one
two
three
four
Which of the following is the electron configuration of a d-Block element?
1s22s22p63s23p63d104s24p5
1s22s22p63s23p63d84s2
1s22s22p63s23p6
1s22s22p63s23p63d104s24p65s1
Which of the following compounds contains elements from each of the s, p and d blocks of the periodic table?
KAl(SO4)2
CuCrO4
KMnO4
Na2B4O7
Cu2+ ions can form a complex ion with Cl- ions and also with NH3.
These complex ions have
different shapes but the same colour
different shapes and different colours
the same shape and the same colour
the same shape but a different colour
Cr3+ ions form a complex ion with both ammonia and with hydroxide ions. These complex ions have:
a different charge but the same coordination number
a different charge and a different coordination number
the same charge and the same coordination number
the same charge but a different coordination number
[Cr(NH2CH2CH2NH2)3]3+ is a complex ion which forms optical isomers.
Which of the following statements is/are true?
1: NH2CH2CH2NH2 is a bidentate ligand
2: The complex has an octahedral shape
3: The terms cis and trans are used to describe the optical
isomers
1, 2 and 3
1 and 2 only
1 and 3 only
1 only
What is the overall charge on the complex ion hexacyanoferrate(II) ?
2+
3-
4-
1-
Which of these is the correct name of the catalyst for the oxidation of sulphur dioxide in the Contact Process?
vanadium oxide
vanadium pentoxide
divanadium oxide
iron
Which of the following complex ions have roughly the same colour?
[Cr(H2O)6]3+. and Fe(H2O)6]3+
[CuCl4]- and [Cu(H2O)6]2+
[Mn(H2O)6]2+ and [Co(H2O)6]2+
Fe(H2O)6]2+. and. [V(H2O)6]2+
What is the shape and colour of the [CuCl4]- complex ion?
square-planar and green
square planar and yellow
tetrahedral and blue
tetrahedral and yellow
