EASY

Earn 100

Explain diamagnetic substances.

Important Questions on Atomic Structure

EASY

Chemistry>Physical Chemistry>Atomic Structure>Quantum Mechanical Model of the Atom

Which of the following is paramagnetic?

HARD

Chemistry>Physical Chemistry>Atomic Structure>Quantum Mechanical Model of the Atom

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

EASY

Chemistry>Physical Chemistry>Atomic Structure>Quantum Mechanical Model of the Atom

The diamagnetic species is:

HARD

Chemistry>Physical Chemistry>Atomic Structure>Quantum Mechanical Model of the Atom

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

EASY

Chemistry>Physical Chemistry>Atomic Structure>Quantum Mechanical Model of the Atom

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

MEDIUM

Chemistry>Physical Chemistry>Atomic Structure>Quantum Mechanical Model of the Atom

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

EASY

Chemistry>Physical Chemistry>Atomic Structure>Quantum Mechanical Model of the Atom

Which of the following species is not paramagnetic?

HARD

Chemistry>Physical Chemistry>Atomic Structure>Quantum Mechanical Model of the Atom

Assuming

2 s - 2 p

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

EASY

Chemistry>Physical Chemistry>Atomic Structure>Quantum Mechanical Model of the Atom

Stability of the species

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

increases in the order of

HARD

Chemistry>Physical Chemistry>Atomic Structure>Quantum Mechanical Model of the Atom

According to Molecular Orbital Theory,

MEDIUM

Chemistry>Physical Chemistry>Atomic Structure>Quantum Mechanical Model of the Atom

Which of the following has unpaired electron(s)?

MEDIUM

Chemistry>Physical Chemistry>Atomic Structure>Quantum Mechanical Model of the Atom

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

MEDIUM

Chemistry>Physical Chemistry>Atomic Structure>Quantum Mechanical Model of the Atom

Which one of the following molecules is paramagnetic?

EASY

Chemistry>Physical Chemistry>Atomic Structure>Quantum Mechanical Model of the Atom

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

MEDIUM

Chemistry>Physical Chemistry>Atomic Structure>Quantum Mechanical Model of the Atom

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

HARD

Chemistry>Physical Chemistry>Atomic Structure>Quantum Mechanical Model of the Atom

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?

MEDIUM

Chemistry>Physical Chemistry>Atomic Structure>Quantum Mechanical Model of the Atom

The colour of the

X_{2}

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

MEDIUM

Chemistry>Physical Chemistry>Atomic Structure>Quantum Mechanical Model of the Atom

The correct bond order in the following species is:

HARD

Chemistry>Physical Chemistry>Atomic Structure>Quantum Mechanical Model of the Atom

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}

MEDIUM

Chemistry>Physical Chemistry>Atomic Structure>Quantum Mechanical Model of the Atom

Two pi and half sigma bonds are present in:

Explain diamagnetic substances.

Important Questions on Atomic Structure

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