1
KCET 2024
MCQ (Single Correct Answer)
+1
-0

The complex compounds $\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_5 \mathrm{SO}_4\right] \mathrm{Br}$ and $\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_5 \mathrm{Br}\right] \mathrm{SO}_4$ are

A
coordination isomers
B
geometrical isomers
C
optical isomers
D
ionisation isomers
2
KCET 2024
MCQ (Single Correct Answer)
+1
-0

Which of the following statements are true about $\left[\mathrm{CoF}_6\right]^{3-}$ ion ?

I. The complex has octahedral geometry.

II. Coordination number of Co is 3 and oxidation state is +6 .

III. The complex is $s p^3 d^2$ hybridised.

IV. It is a high spin complex.

A
I, II and IV
B
I, III and IV
C
II and IV
D
II, III and IV
3
KCET 2023
MCQ (Single Correct Answer)
+1
-0

If a didentate ligand ethane-1, 2-diamine is progressively added in the molar ratio en : Ni :: 1: 1, 2 : 1, 3 : 1 to $$\left[\mathrm{Ni}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{2+}$$ aq solution, following co-ordination entities are formed.

I. $$\left[\mathrm{Ni}\left(\mathrm{H}_2 \mathrm{O}\right)_4 \mathrm{en}\right]^{2+}(a q)$$ - pale blue

II. $$\left[\mathrm{Ni}\left(\mathrm{H}_2 \mathrm{O}\right)_2(\mathrm{en})_2\right]^{2+}(\mathrm{aq})$$ - blue/purple

III. $$\left[\mathrm{Ni}(\mathrm{en})_3\right]^{2+}(\mathrm{aq})$$ - violet

The wavelength in $$\mathrm{nm}$$ of light absorbed in case of I and III are respectively

A
$$475 \mathrm{~nm}$$ and $$310 \mathrm{~nm}$$
B
$$300 \mathrm{~nm}$$ and $$475 \mathrm{~nm}$$
C
$$310 \mathrm{~nm}$$ and $$500 \mathrm{~nm}$$
D
$$600 \mathrm{~nm}$$ and $$535 \mathrm{~nm}$$
4
KCET 2023
MCQ (Single Correct Answer)
+1
-0

Which of the following is an organometallic compound

A
$$\mathrm{CH}_3 \mathrm{COONa}$$
B
$$\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{MgBr}$$
C
$$\left(\mathrm{CH}_3 \mathrm{COO}\right)_2 \mathrm{Ca}$$
D
$$\mathrm{CH}_3 \mathrm{ONa}$$
KCET Subjects
EXAM MAP