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प्रश्न
Match the property given in Column I with the element given in Column II.
| Column I (Property) | Column II (Element) | |
| (i) | Lanthanoid which shows +4 oxidation state |
(a) Pm |
| (ii) | Lanthanoid which can show +2 oxidation state |
(b) Ce |
| (iii) | Radioactive lanthanoid | (c) Lu |
| (iv) | Lanthanoid which has 4f7 electronic configuration in +3 oxidation state |
(d) Eu |
| (v) | Lanthanoid which has 4f14 electronic configuration in +3 oxidation state |
(e) Gd |
| (f) Dy |
उत्तर
| Column I (Property) | Column II (Element) | |
| (i) | Lanthanoid which shows +4 oxidation state |
(b) Ce |
| (ii) | Lanthanoid which can show +2 oxidation state |
(d) Eu |
| (iii) | Radioactive lanthanoid | (a) Pm |
| (iv) | Lanthanoid which has 4f7 electronic configuration in +3 oxidation state |
(e) Gd |
| (v) | Lanthanoid which has 4f14 electronic configuration in +3 oxidation state |
(c) Lu |
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संबंधित प्रश्न
What are the different oxidation states exhibited by the lanthanoids?
Compare the chemistry of actinoids with that of the lanthanoids with special reference to atomic and ionic sizes.
Write the different oxidation states of iron
Explain, why lanthanum (Z = 57) forms La3+ ion, while cerium (Z = 58) forms Ce4+ ion?
Explain effects of lanthanoid contraction
What is the action of the following on lanthanoids?
a. water
b. Sulphur, heat
c. nitrogen, heat
What is Lanthanoid contraction?
Although Zr belongs to 4d and Hf belongs to 5d transition series but it is quite difficult to separate them. Why?
Which one of the lanthanoids given below is the most stable in divalent form?
Name an important alloy which contains some of the lanthanoid metals.
