Transition elements

Written by Dr. Ayesha Nadeem (Chemistry)

Class 12 · Chemistry · 8 questions

Name: ____________________ Date: ____________

Transition metals often form:
- A Only gases
- B Only colourless compounds
- C Only acids
- D Coloured compounds
The common oxidation states of iron are:
- A +1 and +4
- B 0 only
- C +2 and +3
- D -1 and -2
A substance that acts as a catalyst in the Haber process is:
- A Platinum
- B Copper
- C Iron
- D Nickel
Complex ions form because transition metals have:
- A No electrons
- B Low melting points
- C Large charges only
- D Empty d orbitals that accept electron pairs
Which of these is not a transition metal?
- A Iron
- B Sodium
- C Chromium
- D Copper
Transition metals show variable oxidation states because they use:
- A Both ns and (n-1)d electrons
- B Only the s electrons
- C Only the p electrons
- D Neutrons
The colour of copper sulphate crystals is:
- A Green
- B White
- C Blue
- D Pink
An alloy of copper and zinc is:
- A Steel
- B Solder
- C Brass
- D Bronze

Answer key

1. D, 2. C, 3. C, 4. D, 5. B, 6. A, 7. C, 8. C