JEE Main 2019 (Online) 10th April Morning Slot | Coordination Compounds Question 204 | Chemistry

Three complexes,
[CoCl(NH₃)₅] ²⁺(I),
[Co(NH₃)₅H₂O]³⁺ (II) and
[Co(NH₃)₆] ³⁺(III)
absorb light in the visible region. The correct order of the wavelength of light absorbed by them is :

(III) > (I) > (II)

(III) > (II) > (I)

(I) > (II) > (III)

(II) > (I) > (III)

JEE Main 2019 (Online) 9th April Evening Slot

MCQ (Single Correct Answer)

-1

The maximum possible denticities of a ligand given below towards a common transition and inner-transition metal ion, respectively, are :

JEE Main 2019 (Online) 9th April Evening Slot Chemistry - Coordination Compounds Question 206 English

8 and 6

8 and 8

6 and 8

6 and 6

JEE Main 2019 (Online) 9th April Evening Slot

MCQ (Single Correct Answer)

-1

The correct statements among I to III are :
(I) Valence bond theory cannot explain the color exhibited by transition metal complexes.
(II) Valence bond theory can predict quantitatively the magnetic properties of transtition metal complexes.
(III) Valence bond theory cannot distinguish ligands as weak and strong field ones.

(II) and (III) only

(I) and (II) only

(I), (II) and (III)

(I) and (III) only

JEE Main 2019 (Online) 9th April Morning Slot

MCQ (Single Correct Answer)

-1

The degenerate orbitals of [Cr(H₂O)₆]³⁺ are :

d_x² and d_xz

d_xz and d_yz

d_yz and d_z²

d_{x² - y²} and d_xy