1
MHT CET 2021 23rd September Evening Shift
MCQ (Single Correct Answer)
+1
-0

What is IUPAC name of $$[\mathrm{Co}(\mathrm{H}_2 \mathrm{O})(\mathrm{NH}_3)_5] \mathrm{I}_3$$ ?

A
Pentaammineaquacobalt (III) iodide
B
Pentaammineaquocobalt iodide
C
Monoaquapentaammine triiodo cobaltate
D
Pentaammineaquatriiodo cobaltate
2
MHT CET 2021 23rd September Evening Shift
MCQ (Single Correct Answer)
+1
-0

What is effective atomic number of $$\mathrm{Pt}$$ in $$\left[\mathrm{Pt}\left(\mathrm{NH}_3\right)_4\right]^{2+}$$ ? (Given atomic number of $$\mathrm{Pt}=78$$)

A
76
B
84
C
72
D
86
3
MHT CET 2021 23th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

Which of the following complexes is diamagnetic and square planar?

A
$$\left[\mathrm{CoF}_6\right]^{3-}$$
B
$$\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]^{3+}$$
C
$$\left[\mathrm{NiCl}_4\right]^{2-}$$
D
$$\left[\mathrm{Ni}(\mathrm{CN})_4\right]^{2-}$$
4
MHT CET 2021 23th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

Identify the number of unpaired electrons present and geometry respectively of [Co(NH$$_3$$)$$_6$$]$$^{3+}$$ complex.

A
0, square planar
B
2, square planar
C
4, octahedral
D
0, octahedral
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