Predict which one of the following compounds would be coloured - VCE - SSCE Chemistry - Question 6 - 2007 - Paper 1
Question 6
Predict which one of the following compounds would be coloured.
A. BaSO₄
B. AlPO₄
C. KClO₄
D. NaMnO₄
Worked Solution & Example Answer:Predict which one of the following compounds would be coloured - VCE - SSCE Chemistry - Question 6 - 2007 - Paper 1
Identify the compounds
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
The compounds listed are BaSO₄, AlPO₄, KClO₄, and NaMnO₄.
Assess coloration based on transition metals
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Colored compounds typically contain transition metals, which have unpaired electrons allowing for electronic transitions that absorb visible light.
Analyze each compound for transition metals
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
- BaSO₄: Barium (Ba) is not a transition metal; appears white.
- AlPO₄: Aluminum (Al) is not a transition metal; appears white.
- KClO₄: Potassium (K) and Chlorine (Cl) are not transition metals; appears white.
- NaMnO₄: Manganese (Mn) is a transition metal; known to be colored (purple).
Conclusion
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Based on the analysis, the compound that is colored is D. NaMnO₄.
Join the SSCE students using SimpleStudy...
97% of StudentsReport Improved Results
98% of StudentsRecommend to friends
100,000+ Students Supported
1 Million+ Questions answered