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Crystal Field Split in Octahedral Complexes

Which of the ...

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Which of the following given statement(s) is/are incorrect? (a) There are five unpaired electrones in (n-1)d subshell of Fe^{3+} (b) The number of nodal planes in 4d_{xy} orbital is one. (3) In Ag atom, 23 electrones have a spin of one type and 24 of the opposite type. (1) (b) & (c) (2) Only (b) (3) Only (c) (4) Only (a)

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Q. Which of the following statement(s) are correct?

1. Electronic configuration of

C r

[A r] 3 d^{5} 4 s^{1}

(Atomic number of

C r = 24

2. The magnetic quantum number may have a negative value.

3. In the silver atom,

23

electrons have a spin of one type and

24

of the opposite type (Atomic number of

A g = 47

4. The oxidation state of nitrogen in

H N_{3}

- 3

Q. Identify the correct statements among the following:
(A) All orbitals in a shell are degenerate.
(B) Electron configuration of chromium violates Aufbau principle.
(C) Maximum number of unpaired electrons in 'f' subshell is 7.
(D) Maximum number of unpaired electrons in a subshell is 4

l

Q. An orbital with

m = + 3

has an unpaired electron. If it is the only unpaired electron in the atom which of the following electronic arrangements corresponds to that atom?

Q. Consider the following statements:

(A) Electron density in the

x y

3 d_{x^{2} - y^{2}}

orbital is zero.
(B) Electron density in the

x y

3 d_{z^{2}}

orbital is zero.
(C)

2 s

-orbital has one nodal surface.
(D) For

2 p_{x}

y z

is the nodal plane.

Which are the correct statements?

Q. Statement 1: A

π

bond is formed between the lobes of adjacent

p

orbitals in the same lane of two atoms that contain only one electron each.
Statement 2: Each of the two lobes of a single

p

orbital can hold two electrons of opposite spin.

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Crystal Field Split in Octahedral Complexes

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