Assertion : Linkage isomerism arises in coordination compounds containing ambidentate ligand.

Reason: Ambidentate ligand has two different donor atoms.

• If both assertion and reason are true and reason is the correct explanation of assertion.

• If both assertion and reason are true but reason is not the correct explanation of assertion.

• If assertion is true but reason is false.

• If both assertion and reason are false.

Which of the following complexes do not follow EAN rule ?

• [Fe(CN)₆]^4-

• [Fe(CN)₆]^3-

• Ni(CO)₄

• [PdCl₄]^2-

Which of the following metal ion forms unstable complex with CN^-?

• Ag(I)

• Zn(II)

• Cu(II)

• Cr(II)

Assertion : EDTA forms complex with divalent metals of 3d-series in the ratio of 1:1.

Reason: EDTA has 4-COOH groups.

• If both assertion and reason are true and reason is the correct explanation of assertion

• If both assertion and reason are true but reason is not the correct explanation of assertion.

• If assertion is true but reason is false.

• If both assertion and reason are false.

Assertion : In a mixture of Cd(II) and Cu(II),Cd²⁺ gets precipitated in presence of KCN by H₂S.

Reason : The stability constant of [Cu(CN)₄]^3- is greater than [Cd(CN)₄]^2-.

• If both assertion and reason are true and reason is the correct explanation of assertion.

• If both assertion and reason are true but reason is not the correct explanation of assertion.

• If assertion is true but reason is false.

• If both assertion and reason are false.

Assertion : [Fe(H₂O)₅NO]SO₄ is paramagnetic.

Reason : The Fe in [Fe(H₂O)₅NO]SO₄ has three unpaired electrons.

• If both assertion and reason are true and reason is the correct explanation of assertion.

• If both assertion and reason are true but reason is not the correct explanation of assertion.

• If assertion is true but reason is false.

• If both assertion and reason are false.

The wavelength of light absorbed is highest in

• [Co(NH₃)₅Cl]²⁺

• [Co(NH₃)₅H₂O]³⁺

• [Co(NH₃)₆]³⁺

• [Co(en)₃]³⁺

Which of the following is diamagnetic?

• [Cu(NH₃)₄]²⁺

• [NiCl₄]^2-

• [PtCl₄]^2-

• [Cu(H₂O)₄]²⁺

CO binds itself to metal atoms through :

• carbon atom only

• oxygen atom only

• carbon and oxygen atom

• does not bind

Match list I with list II and select the correct answer using the codes given below the lists.

List I Metal ion	List II Magnetic moment (B.M)
A. Cr3+	1.  $\sqrt{35}$
B.  Fe2+	2.  $\sqrt{30}$
C. Ni2+	3.  $\sqrt{24}$
D. Mn2+	4.  $\sqrt{15}$
	5.  $\sqrt{8}$

• A-1, B-3, C-5, D-4

• A-2, B-3,C-5,D-1

• A-4, B-3, C-5, D-1

• A-4, B-5, C-3, D-1