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1
JEE Main 2016 (Offline)
MCQ (Single Correct Answer)
+4
-1
Change Language
The pair having the same magnetic moment is :
[At. No.: Cr = 24, Mn = 25, Fe = 26, Co = 27]
A
[Cr(H2O)6]2+ and [Fe(H2O)6]2+
B
[Mn(H2O)6]2+ and [Cr(H2O)6]2+
C
[CoCl4]2– and [Fe(H2O)6]2+
D
[Cr(H2O)6]2+ and [CoCl4]2–
2
JEE Main 2015 (Offline)
MCQ (Single Correct Answer)
+4
-1
Change Language
The number of geometric isomers that can exist for square planar [Pt (Cl) (py) (NH3) (NH2OH)]+ is (py = pyridine) :
A
3
B
4
C
6
D
2
3
JEE Main 2015 (Offline)
MCQ (Single Correct Answer)
+4
-1
Change Language
Which of the following compounds is not colored yellow?
A
K3[Co(NO2)6]
B
(NH4)3[As(Mo3O10)4]
C
BaCrO4
D
Zn2[Fe(CN)6]
4
JEE Main 2014 (Offline)
MCQ (Single Correct Answer)
+4
-1
The equation which is balanced and represents the correct product(s) is :
A
[Mg (H2O)6 ]2+ + (EDTA)4- $$\buildrel {excess\,NaOH} \over \longrightarrow $$ [Mg (EDTA) ]2+ + 6H2O
B
CuSO4 + KCN $$\to$$ K2 [Cu (CN)4] + K2SO4
C
Li2O + 2KCl $$\to$$ 2LiCl + K2O
D
[CoCl(NH3)5]+ + 5H+ $$\to$$ Co2+ + $$5NH_4^+$$ + Cl-
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