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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is a coloured ion?
💡 Hint: Think about the light absorption and the colour perceived.
Question 2
Easy
What role do ligands play in forming coloured complexes?
💡 Hint: Consider how different ligands might change an ion's appearance.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What causes a transition metal ion to be coloured?
- Presence of unpaired electrons
- Excitation of d electrons
- Amount of metal present
💡 Hint: Think about what changes in the ion structure lead to colour.
Question 2
True or False: The observed colour of an ion is the same as the colour it absorbs.
- True
- False
💡 Hint: Recall the complementary colour theory.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Given a transition metal compound that appears green, identify potential ligands that could cause this coloration and justify your reasoning.
💡 Hint: Consider what ligands typically impart colour to compounds and their charge.
Question 2
Describe a laboratory procedure to determine the concentration of an unknown cobalt(II) ion solution using its colour.
💡 Hint: Remember how colour intensity relates to concentration in dilutions.
Challenge and get performance evaluation