12th Standard Syllabus & Materials
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Published on: 18/06/2021
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Questions + Answers key
Take MCQ Chemistry Test1.
Which of the following is correct statement?
[Ti(H2O)6]3+ is coloured complex
[Sc(H2O)6]3+ is colourless complex
d-d transition is not possible in [Sc(H2O)6]3+ complex
All of these
2.
According to CFT, five d-orbitals of an octahedral complex split to give _______.
One orbital with lower energy and four orbitals with higher energy
Two orbitals with lower energy and three orbitals with higher energy
Three orbitals with lower energy and two orbitals with higher energy
Four orbitals with lower energy and one orbital with higher energy.
3.
The spin only magnetic moment of [Mnfsr4]2- is 5.9 BM. Geometry of the complex ion is _______.
Tetrahedral
Octahedral
Square planar
Pentagonal pyramidal
4.
Which of the following octahedral complexes do not show geometrical isomerism?
[Co(NH3)3Cl3]
[PtCl2(NH3)4]
[Pt(NH3)2Cl2]
[Co(en)3]3+
5.
Primary and secondary valencies of Cu in [Cu(NH3)4]SO4 is _______.
4,4
2,4
4,1
4,2
1.
(d)
All of these
2.
(c)
Three orbitals with lower energy and two orbitals with higher energy
3.
(a)
Tetrahedral
4.
(d)
[Co(en)3]3+
5.
(b)
2,4
12th Standard Syllabus & Materials
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