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प्रश्न
Assertion: Actinoids form relatively less stable complexes as compared to lanthanoids.
Reason: Actinoids can utilise their 5f orbitals along with 6d orbitals in bonding but lanthanoids do not use their 4f orbital for bonding.
विकल्प
Both assertion and reason are true, and reason is the correct explanation of the assertion.
Both assertion and reason are true but reason is not the correct explanation of assertion.
Assertion is not true but reason is true.
Both assertion and reason are false.
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उत्तर
Assertion is not true but reason is true.
Explanation:
Actinoids are more reactive than lanthanoids as they involve their 5d-orbital in the bond formation process while due to effectively shielded and greater nuclear charge 4f-orbitals are not available for bonding. Thus, lanthanoids comparatively form less complexes than actinoids.
Assertion is not true but reason is true.
APPEARS IN
संबंधित प्रश्न
Distinguish between lanthanoid and actinoids.
How would you account for the following:
The chemistry of actinoids is more complicated as compared to lanthanoids.
Give a reason for the following:
Actinoids show irregularities in their electronic configurations.
Which is the last element in the series of the actinoids? Write the electronic configuration of this element. Comment on the possible oxidation state of this element.
Compare the chemistry of the actinoids with that of lanthanoids with reference to electronic configuration
Compare the chemistry of the actinoids with that of lanthanoids with reference to oxidation states
Write four points of distinction between Lanthanoids and Actinoids.
How do you prepare:
Actinoid elements show wide range of oxidation states.
Identify the CORRECT statement.
Actinoid series begins at ____________ and ends at ____________.
The actinoid contraction is attributed to the ____________.
The number of unpaired f-electrons in ytterbium (Z = 70) is ____________.
Which among the following actinoids exhibits highest oxidation state +7?
The inner transition metals of 5f series are known as ____________.
There are 14 elements in actinoid series. Which of the following elements does not belong to this series?
Which of the following actinoids show oxidation states upto +7?
(i) Am
(ii) Pu
(iii) U
(iv) Np
The incorrect statement among the following is:
What is actinoid contraction?
What are actinoids? Give their general electronic configuration.
