Class XII Chemistry Coordination Compounds 2

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Question 1

Match the metal ions given in Column I with the spin magnetic moments of the ions given in Column II and assign the correct code :

• Aa-iv b-v c-ii d-i
• Ba-i b-ii c-iii d-iv
• Ca-iv b-i c-ii d-iii
• Da-iii b-v c-i d-ii

Question 2

Which of the following complex ions is expected to absorb visible light?
(At. no. Zn = 30, Sc = 21, Ti = 22, Cr = 24)

• A[Sc(H₂O)₃(NH₃)₃]³⁺
• B[Ti(en)₂ (NH₃)₂]⁴⁺
• C[Cr(NH₃)₆]³⁺
• D[Zn(NH₃)₆]²⁺

Question 3

The correct increasing order of trans-effect o the following species is

• ANH₃ > CN^- > Br^- > C₆H^-₅
• BCN^- > C₆H^-₅ > Br^- > NH₃
• CBr^- > CN^- > NH₃ > C₆H^-₅
• DCN^- > Br^- > C₆H^-₅ > NH₃

Question 4

The type of isomerism shown by the complex is

• AGeometrical isomerism
• BCoordination isomerism
• CIonization isomerism
• DLinkage isomerism

Question 5

The geometry of [NiCl₄]^2- is-

• ATetrahedral
• BSquare planar
• CPyramidal
• DOctahedral

Question 6

The pair of the compounds in which both the metals are in the highest possible oxidation state is

• A
• B
• C
• D

Question 7

Co-ordination number of Ni in is:

• A3
• B6
• C4
• D2

Question 8

An excess of AgNO₃ is added to 100 mL of a 0.01M solution of dichlorotetraaquachromium (III) chloride. The number of moles of AgCl precipitated would be :

• A0.002
• B0.003
• C0.01
• D0.001

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