WorksheetsChemistry A2 Module 5.3 Foundations
Total questions: 15
Worksheet time: 10mins
A transition element is a .......
d block element that has a complete d-sub-shell as a stable ion
d block element that has an incomplete d-sub-shell as a stable atom
d block element that has an incomplete d-sub-shell as a stable ion
d block element that has a complete d-sub-shell as a stable atom
Which element/s are not classed as transition metals?
Scandium
Manganese
Zinc
Titanium
What sub-shell has the lower energy?
3d
4s
Which element/s do NOT completely fill the 4s sub-shell first?
Scandium
Chromium
Copper
Zinc
What is the oxidation state of manganese in KMnO4?
(a)
What is the oxidation state of chromium in K2Cr2O7?
+12
+5
+6
-6
In the complex ion [Cu(H2O)6]2+, the coordination number is (a)
What is the charge of the transition metal in the complex [Ti(H2O)6]3+ ?
-3
+3
0
+6
What shape do chloride complexes form?
Square planar
Tetrahedral
Octahedral
What shape does the complex Cis-platin form?
Tetrahedral
Square planar
Octahedral
Ethanedioate ion, C2O42- is a (a) ligand.
What is observed when sodium hydroxide is added to Cu2+ ions?
Green precipitate
Blue precipitate
Brown precipitate
Green precipitate which re-dissolves in excess hydroxide
What is observed when ammonia is added to Mn2+ ?
Blue precipitate
Dark green precipitate
Rusty brown precipitate
Brown precipitate which darkens in air as it oxidises
When sodium hydroxide is added to this ion and warmed gently, it turns damp red litmus paper blue. What ion is it?
Cu2+
NH4+
SO42-
Fe3+
This ion reacts with silver ions to form a cream precipitate. What ion is it?
Cl-
Br-
I-
