1
JEE Main 2019 (Online) 12th January Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
Mn2(CO)10 is an organometallic compound due to the presence of -
A
C–O bond
B
Mn – Mn bond
C
Mn – O bond
D
Mn – C bond
2
JEE Main 2019 (Online) 11th January Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The number of bridging CO ligand(s) and Co-Co bond(s) in Co2(CO)8, respectively are :
A
2 and 0
B
0 and 2
C
4 and 0
D
2 and 1
3
JEE Main 2019 (Online) 11th January Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The coordination number of Th in K4[Th(C2O4)4(OH2)2] is :
(C2O$${_4^{2 - }}$$ = Oxalato)
A
14
B
10
C
8
D
6
4
JEE Main 2019 (Online) 11th January Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
Match the metals (column I) with the coordination compound(s)/enzyme(s) (column II)

(Column I) Metals
(Column II) Coordination
compounds(s) enzyme(s)
(A) Co (i) Wilkinson catalyst
(B) Zn (ii) Chlorophyl
(C) Rh (iii) Vitamin B12
(D) Mg (iv) Carbonic anhydrase
A
(A)-(iii); (B)-(iv); (C)-(i); (D)-(ii)
B
(A)-(iv); (B)-(iii); (C)-(i); (D)-(ii)
C
(A)-(i); (B)-(ii); (C)-(iii); (D)-(iv)
D
(A)-(ii); (B)-(i); (C)-(iv); (D)-(iii)
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