12 Questions
Which oxidation state is most common among the lanthanoids?
4
Among the actinoid elements, which group shows the highest oxidation state of +7?
U, Fm, Th
Which statement is not correct?
La is actually an element of transition metal series rather than lanthanide series
Which type of isomerism is exhibited by [Pt(NH3)2Cl2]?
Linkage isomerism
Which complex is not expected to exhibit isomerism?
[Co(NH3)5 SO4]Cl
Which complex exhibits Fac-mer isomerism?
[Co(en)3]3+
What is the most common oxidation state exhibited by lanthanoids?
3
Which actinoid elements can show the highest oxidation state of +7?
U, Fm, Th
Which complex is not expected to exhibit isomerism?
[Co(NH3)5 SO4]Cl
Which type of isomerism is shown by [Pt(NH3)2Cl2]?
Geometrical isomerism
Which complex has a metal oxidation number of zero?
Both (b) and (c)
Which complex is paramagnetic in nature?
[Co(NH3)6]3+
Study Notes
Lanthanoids and Actinoids
- The most common oxidation state among lanthanoids is +3.
- Actinoid elements that can show the highest oxidation state of +7 are Protactinium (Pa) and Neptunium (Np).
Isomerism in Complexes
- [Pt(NH3)2Cl2] exhibits cis-trans isomerism.
- The complex that is not expected to exhibit isomerism is [Ni(CO)4].
- The complex that exhibits Fac-mer isomerism is [Co(NH3)3(NO2)3].
- The complex that has a metal oxidation number of zero is [Ni(CO)4].
- The complex that is paramagnetic in nature is [CoF6]3-.
Test your knowledge on oxidation states in chemistry. This quiz covers topics related to lanthanoids, actinoid elements, and properties of various compounds. Choose the correct options from the given multiple-choice questions.
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