JEE Main 2020 (Online) 3rd September Evening Slot | Coordination Compounds Question 221 | Chemistry

Complex A has a composition of H₁₂O₆Cl₃Cr. If the complex on treatment with conc.H₂SO₄ loses 13.5% of its original mass, the correct molecular formula of A is :
[Given: atomic mass of Cr = 52 amu and Cl = 35 amu]

[Cr(H₂O)₅Cl]Cl₂.H₂O

[Cr(H₂O)₄Cl₂]Cl.2H₂O

[Cr(H₂O)₃Cl₃].3H₂O

[Cr(H₂O)₆]Cl₃

JEE Main 2020 (Online) 3rd September Morning Slot

MCQ (Single Correct Answer)

-1

The complex that can show optical activity is :

cis-[Fe(NH₃)₂(CN)₄]^–

trans-[Cr(Cl₂)(ox)₂]^3–

trans-[Fe(NH₃)₂(CN)₄]^–

cis-[CrCl₂(ox)₂]^3– (ox = oxalate)

JEE Main 2020 (Online) 3rd September Morning Slot

MCQ (Single Correct Answer)

-1

The electronic spectrum of [Ti(H₂O)₆]³⁺ shows a single broad peak with a maximum at 20,300 cm^-1 . The crystal field stabilization energy (CFSE) of the complex ion, in kJ mol^-1, is :

83.7

242.5

145.5

JEE Main 2020 (Online) 2nd September Evening Slot

MCQ (Single Correct Answer)

-1

The one that is not expected to show isomerism is :

[Pt(NH₃)₂Cl₂]

[Ni(NH₃)₄(H₂O)₂]²⁺

[Ni(en)₃]²⁺

[Ni(NH₃)₂Cl₂]

PREVIOUS NEXT