Home
Class 12
CHEMISTRY
Assertion: In any transition series the ...

Assertion: In any transition series the magnetic moment of `M^(2+)`
ions first increases then decreases
Reason: In a transition series, the number of unpaired electrons first increases and then decreases.

A

If both Assertion and Reason are true and Reason is correct explanation of Assertion.

B

If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.

C

If Assertion is true but Reason is false.

D

If both Assertion and Reason and false.

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Similar Questions

Explore conceptually related problems

Why in any transition series, melting points first increase and then decrease and also they show a dip in the middle?

The magnetic moment of a transition metal ion is 3.87BM. The number of unpaired electrons present in it is

In a transition series, as the atomic number increases, paramagnetism

The magnetic moment of a transition metal ion is found to be 3.87 Bohr Magneton (BM). The number of unpaired electrons present in it is:

Assertion : In the series Sc to Zn, the enthalpy of atomisation of zinc is the lowest. Reason : Zinc has greater number of unpaired electrons.

The first transition series is called __________transition series.

The first ionisation energies of the elements of the transition series.

Transition metals and many of their compounds show paramagnetic behaviour where there are unpaired electron or electrons. The magnetic moment arises from the spin and orbital motions in ions or molecule. Magnetic moment of n unpaired electrons is given as mu=sqrt(n(n+2)) Bohr magneton Magnetic moment increases as the number of unpaired electrons increases. Q. In 3d series the maximum magnetic moment is shown by

Explain the following : The paramagnetic character in 3d-transition series elements increases upto Mn and then decreases.

The spin only magnetic moment of transition metal ion found to be 5.92 BM. The number of unpaired electrons present in the species is :