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Fourteen elements following Lanthanum ar...

Fourteen elements following Lanthanum are called Lanthanoids. What is Lanthanoid contraction? Give reason for it.

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Fourteen elements following Lanthanum are called Lanthanoids. KMnO_2 is a purple coloured crystal and it acts as an oxidant. How will you prepare from MnO_2 ?

Lanthanoid contraction is caused due to:

What are the consequences of lanthanoid contraction?

Transition elements are d - block elements and inner transition elements are f-block elements. What is Lanthanoid Contraction?

Write any one consequence of lanthanoid contraction.

Which of the following is not related to lanthanoid contraction and its consequences ?

Assertion : f-block elements are called inner transition elements Reason : Lanthanides and actinides are inner transition elements

Actinoid contraction is greater from element to element than lanthanoid contraction. Why?

The chemistry of the actinoid elements is not so smooth as that of the lanthanoids. Justify this statement by giving some examples from the oxidation state of these elements.

BODY BOOKS PUBLICATION-THE d AND f-BLOCK ELEMENTS-Example
  1. Represent the structure of dichromate Ion.

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  2. Potassium permanganate (KMnO4) is a strong oxidizing agent. Write any ...

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  3. Fourteen elements following Lanthanum are called Lanthanoids. What is ...

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  4. Fourteen elements following Lanthanum are called Lanthanoids. KMnO2 is...

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  5. Potassium dichromate is an orange coloured crystal and is an important...

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  6. Potassium dichromate is an orange colour crystal and is an important c...

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  7. KMnO4 Is a strong oxidizing agent In acidic, alkaline and neutral medi...

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  8. KMnO4 Is a strong oxidizing agent In acidic, alkaline and neutral medi...

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  9. Account for the following trends In atomic and Ionic radii of transiti...

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  10. Account for the following trends in atomic and ionic radii of transiti...

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  11. Account for the following trends in atomic and ionic radii of transiti...

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  12. Transition elements are d- block elements Write any four characteristi...

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  13. Describe the method of preparation of potassium dichromate from chromi...

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  14. Write any one consequence of lanthanoid contraction.

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  15. Transition elements are d-block elements, with some exceptions. Usuall...

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  16. Transition elements are d-block elements, with some exceptions. Usuall...

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  17. Two compounds of iron are given below. FeSO4 Fe2(SO4)3 (The oxidation ...

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  18. Transition elements are d-block elements, with some exceptions. Usuall...

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  19. Atomic sizes generally increase as we come down a group of the periodi...

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  20. E^@ (standard electrode potential) values generally become less negati...

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