Home
Class 12
CHEMISTRY
If M is the element of actinoid series, ...

If M is the element of actinoid series, the degree of complex formation decrease in the order

A

`M^(4+) gt M^(3+) gtMO_2^(2+) gt MO_2^(+)`

B

`MO_2^(+) gt MO_2^(2+) gt M^(3+) gt M^(4+)`

C

`M^(4+) gt MO_2^(2+) gt M^(3+) gt MO_2^(+)`

D

`MO_2^(2+) lt MO_2^(+) lt M^(3+) gt M^(3+)`

Text Solution

Verified by Experts

The correct Answer is:
C
The higher the charge on the metal ion, smaller is the ionic size and more is the complex forming ability. Thus, the degree fo complex formation decreases in the order `M^(4+) gt MO_2^(2+) gt M^(3+) gt MO_2^(+)`
The higher tendecy of complex formation of `MO_2^(2+)` as compared of `M^(3+)` is due to high concentration of charge on metal atom M in `MO_2^(2+)`.
Promotional Banner

Topper's Solved these Questions

  • THE D- AND F- BLOCK ELEMENTS

    NCERT FINGERTIPS|Exercise Application Of D And F Block Elements|3 Videos

  • THE D- AND F- BLOCK ELEMENTS

    NCERT FINGERTIPS|Exercise Higher Order Thinking Skills|10 Videos

  • THE D- AND F- BLOCK ELEMENTS

    NCERT FINGERTIPS|Exercise The Lanthanoids|18 Videos

  • SURFACE CHEMISTRY

    NCERT FINGERTIPS|Exercise Assertion And Reason|15 Videos

  • THE P-BLOCK ELEMENTS

    NCERT FINGERTIPS|Exercise Assertion And Reason|15 Videos

Similar Questions

Explore conceptually related problems

Nucleoprotein complex formation stage is

Assertion : The degree of complex formation in actinides decreases in the order : Actinides form complexes with T-bonding ligands such as alkyl phosphines and thioethers.

Lanthanoids and actinoids are f-block elements in which the last electron enters the anti-penultimate energy level. The most common oxidation state of lanthanoids is +3, though +2 and +4 oxidation states are exhibited by some of the elements. In lanthanoid series, there is a progressive decrease in atomic and ionic radii, known as lanthanoid contraction. Unlike lanthanoids, actinoids show a large number of oxidation states. Which is the last element of the actinoid series? Write its electronic configuration.

Lanthanoids and actinoids are f-block elements in which the last electron enters the anti-penultimate energy level. The most common oxidation state of lanthanoids is +3, though +2 and +4 oxidation states are exhibited by some of the elements. In lanthanoid series, there is a progressive decrease in atomic and ionic radii, known as lanthanoid contraction. Unlike lanthanoids, actinoids show a large number of oxidation states. Name an element of lanthanoid series, which is known to show +4 oxidation state. Is it a strong oxidising agent or reducing agent?

Amongst the elements of group 14 the reducing power of the divalent species decreases in the order .

Lanthanoids and actinoids are f-block elements in which the last electron enters the anti-penultimate energy level. The most common oxidation state of lanthanoids is +3, though +2 and +4 oxidation states are exhibited by some of the elements. In lanthanoid series, there is a progressive decrease in atomic and ionic radii, known as lanthanoid contraction. Unlike lanthanoids, actinoids show a large number of oxidation states. Name two lanthanoids which exhibit +2 oxidation state.

Lanthanoids and actinoids are f-block elements in which the last electron enters the anti-penultimate energy level. The most common oxidation state of lanthanoids is +3, though +2 and +4 oxidation states are exhibited by some of the elements. In lanthanoid series, there is a progressive decrease in atomic and ionic radii, known as lanthanoid contraction. Unlike lanthanoids, actinoids show a large number of oxidation states. Which out of La(OH)_3 and Lu(OH)_3 is more basic?

Lanthanoids and actinoids are f-block elements in which the last electron enters the anti-penultimate energy level. The most common oxidation state of lanthanoids is +3, though +2 and +4 oxidation states are exhibited by some of the elements. In lanthanoid series, there is a progressive decrease in atomic and ionic radii, known as lanthanoid contraction. Unlike lanthanoids, actinoids show a large number of oxidation states. Write the general electronic configuration of lanthanoids.

d-block elements have tendency for complex formation because of