CBSE Class 12 Chemistry 2023: question 8
Set in the CBSE Class 12 board exam of 2023, paper 56/1/1, section A, question 8, for 1 mark. Try it first; the hints and our step-by-step solution are below.
Q8 · 1 mark · MCQCoordination Compounds
The compounds and represent :
- (A)optical isomerism
- (B)linkage isomerism
- (C)ionisation isomerism
- (D)coordination isomerism
Source: official question paper from cbse.gov.in (PDF). See it in the full 2023 board paper, set 56/1/1.
Hints
Open one hint at a time and try again before the next.
Hint 1
Compare the ions each compound gives in water.
Hint 2
Which ligand is inside the brackets in each?
Step-by-step solution
Each step shows the marks it earns, as an examiner would award them. Checked by an independent re-solve from the question paper.
The two compounds exchange the ligand inside the coordination sphere with the counter-ion outside it.
- 1 mark
In solution they give different ions ( and ), so they are ionisation isomers. Option (C).
Answer: Ionisation isomerism, option (C)
Where the marks are
- Identifies ionisation isomerism (1 mark)
Revise the chapter
- Chapter: Coordination Compounds (notes, formulas, where marks are lost and every past question)
- Topic: Isomerism in Coordination Compounds
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