1
JEE Main 2024 (Online) 30th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

The coordination geometry around the manganese in decacarbonyldimanganese $$(0)$$ is

A
Trigonal bipyramidal
B
Square pyramidal
C
Square planar
D
Octahedral
2
JEE Main 2024 (Online) 30th January Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Choose the correct statements from the following :

(A) Ethane-1, 2-diamine is a chelating ligand.

(B) Metallic aluminium is produced by electrolysis of aluminium oxide in presence of cryolite.

(C) Cyanide ion is used as ligand for leaching of silver.

(D) Phosphine act as a ligand in Wilkinson catalyst.

(E) The stability constants of $$\mathrm{Ca}^{2+}$$ and $$\mathrm{Mg}^{2+}$$ are similar with EDTA complexes.

Choose the correct answer from the options given below :

A
(B), (C), (E) only
B
(A), (D), (E) only
C
(C), (D), (E) only
D
(A), (B), (C) only
3
JEE Main 2024 (Online) 29th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

A reagent which gives brilliant red precipitate with Nickel ions in basic medium is

A
dimethyl glyoxime
B
sodium nitroprusside
C
meta-dinitrobenzene
D
neutral $$\mathrm{FeCl}_3$$
4
JEE Main 2024 (Online) 29th January Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Match List I with List II

List - I
(Substances)
List - II
(Element Present)
(A) Ziegler catalyst (I) Rhodium
(B) Blood Pigment (II) Cobalt
(C) Wilkinson catalyst (III) Iron
(D) Vitamin $$\mathrm{B_{12}}$$ (IV) Titanium

Choose the correct answer from the options given below:

A
A-IV, B-III, C-I, D-II
B
A-II, B-IV, C-I, D-III
C
A-III, B-II, C-IV, D-I
D
A-II, B-III, C-IV, D-I
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