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The paramagnetic species among the following is :

Na⁺ , Zn²⁺ , Cu⁺, Fe³⁺

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Important Questions on Structure of Atom

EASY

Chemistry>Physical Chemistry>Structure of Atom>Filling of Electrons in Orbitals

Which of the following is paramagnetic?

HARD

Chemistry>Physical Chemistry>Structure of Atom>Filling of Electrons in Orbitals

Decreasing order of stability of $O_{2}, O_{2}^{-}, O_{2}^{+}$ and $O_{2}^{2 -}$ is:

EASY

Chemistry>Physical Chemistry>Structure of Atom>Filling of Electrons in Orbitals

The diamagnetic species is:

HARD

Chemistry>Physical Chemistry>Structure of Atom>Filling of Electrons in Orbitals

In which of the following processes, the bond order has increased and paramagnetic character has changed to diamagnetic?

EASY

Chemistry>Physical Chemistry>Structure of Atom>Filling of Electrons in Orbitals

Which one of the following molecules is expected to exhibit paramagnetic behaviour?

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Chemistry>Physical Chemistry>Structure of Atom>Filling of Electrons in Orbitals

Which one of the following properties is not shown by NO ?

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Chemistry>Physical Chemistry>Structure of Atom>Filling of Electrons in Orbitals

Which of the following species is not paramagnetic?

HARD

Chemistry>Physical Chemistry>Structure of Atom>Filling of Electrons in Orbitals

Assuming

2 s - 2 p

mixing is NOT operative, the paramagnetic species among the following is

EASY

Chemistry>Physical Chemistry>Structure of Atom>Filling of Electrons in Orbitals

Stability of the species

{Li}_{2}, {Li}_{2}^{-} and {Li}_{2}^{+}

increases in the order of

HARD

Chemistry>Physical Chemistry>Structure of Atom>Filling of Electrons in Orbitals

According to Molecular Orbital Theory,

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Chemistry>Physical Chemistry>Structure of Atom>Filling of Electrons in Orbitals

Which of the following has unpaired electron(s)?

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Chemistry>Physical Chemistry>Structure of Atom>Filling of Electrons in Orbitals

In which of the following pairs of molecules/ions, both the species are not likely to exist?

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Chemistry>Physical Chemistry>Structure of Atom>Filling of Electrons in Orbitals

Which one of the following molecules is paramagnetic?

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Chemistry>Physical Chemistry>Structure of Atom>Filling of Electrons in Orbitals

Which one of the following pairs of species has the same bond order?

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Chemistry>Physical Chemistry>Structure of Atom>Filling of Electrons in Orbitals

According to molecular orbital theory, which of the following molecule will not be available?

HARD

Chemistry>Physical Chemistry>Structure of Atom>Filling of Electrons in Orbitals

Among the following molecules/ ions,

$C_{2}^{2 -}, N_{2}^{2 -}, O_{2}^{2 -}, O_{2}$

Which one is diamagnetic and has the shortest bond length?

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Chemistry>Physical Chemistry>Structure of Atom>Filling of Electrons in Orbitals

The colour of the

X_{2}

molecules of group 17 elements changes gradually from yellow to violet down the group. This is due to -

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Chemistry>Physical Chemistry>Structure of Atom>Filling of Electrons in Orbitals

The correct bond order in the following species is:

HARD

Chemistry>Physical Chemistry>Structure of Atom>Filling of Electrons in Orbitals

Among the species given below, the total number of diamagnetic species is ___.

H a t o m, N O_{2} m o n o m e r, O_{2}^{-}

(superoxide), dimeric sulphur in vapour phase,

{Mn}_{3} O_{4}, {({NH}_{4})}_{2} [{FeCl}_{4}], {({NH}_{4})}_{2} [{NiCl}_{4}], K_{2} {MnO}_{4}, K_{2} {CrO}_{4}

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Chemistry>Physical Chemistry>Structure of Atom>Filling of Electrons in Orbitals

Two pi and half sigma bonds are present in:

The paramagnetic species among the following is : Na+ , Zn2+ , Cu+, Fe3+

Important Questions on Structure of Atom

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The paramagnetic species among the following is :

Na⁺ , Zn²⁺ , Cu⁺, Fe³⁺