Which statement(s) for the complex ion [Co(H2NCH2CH2NH2)2Cl2]+[Co(\text{H}_2\text{NCH}_2\text{CH}_2\text{NH}_2)_2\text{Cl}_2]^+[Co(H2NCH2CH2NH2)2Cl2]+ is/are correct?
1, 2 and 3
Only 1 and 3
Only 2 and 3
Only 1 and 2
48 exam-style questions on OCR A A Level Chemistry Transition elements. Each one has a worked solution and a mark scheme showing where the marks go.