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What are "d"-block elements?...

What are "d"-block elements?

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Explore conceptually related problems

Why are d-block elements called transition elements ?

Observe the information provided in the table and answer the questions given below it. What are the s-block elements in the table?

Some statements are given below. Among them, the correct statement are a) All transition elements are d - block elements b) All d- block elements are transition elements c) Helium is a inert gas d) Aluminium is a respresentative element

Why are f-block elements placed below the main table?

Which elements are called p-block elements ?

What are the characteristics of the transition elements and why are they called transition elements? Which of the d-block elements may not be regarded as the transition elements?

Write a note on d-block elements.

The correct statement in respect of d-block elements is

Knowledge Check

  • Some statements are given below. Among them, the correct statement are a) All transition elements are d - block elements b) All d- block elements are transition elements c) Helium is a inert gas d) Aluminium is a respresentative element

    A
    All are correct
    B
    Only a, c and d are correct
    C
    Only b,c and d are correct
    D
    Only a and c are correct

  • Liquid metal among d-block elements is

    A
    Hg
    B
    Zn
    C
    Nb
    D
    Cd

  • The general electronic configuration of d-block elements is

    A
    `ns^(1 - 2) (n - 1) d^(1 - 10)`
    B
    `ns^2 (n - 1)d^1 (n - 2) f^(1 - 14)`
    C
    `ns^(1 - 2) (n-1)d^(1 - 9)`
    D
    `ns^(1 - 2) np^6 (n-1)d^(1 - 10)`
    • NCERT TELUGU-D-BlOCK ELEMENTS-SELF EVALUATION (ANSWER IN ONE OR TWO SENTENCES)
    1. What are "d"-block elements?

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    2. How d-block elements are classified?

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    3. Explain why d-block elements exhibit variable oxidation states?

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    4. Transition elements form complexes due to

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    5. Why does Mn(II) show maximum paramagnetic character among the bivalent...

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    6. Why Zn^(2+) salts are white while Ni^(2+) salts are coloured?

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    7. [Ti(H(2)O)(6)]^(3+) is coloured while [Sc(H(2)O)(6)]^(3+) is colourles...

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    8. A substance is found to have a magnetic moment of 3.9 BM. How many unp...

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    9. Explain why the melting and boiling points of Zn, Cd, Hg are low?

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    10. Explain why Mn^(2+) is more stable than Mn^(3+)?

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    11. Write two alloys of copper and their uses.

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    12. Write short notes on alumino thermic process?

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    13. Name the first and last element in the second transition series.

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    14. Name the lightest and the heaviest elements (in terms of density) amon...

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    15. Which of the following ions would form colourless complexes? Cu^(2+)...

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    16. What happens when KI solution is added to an aqueous solution of coppe...

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    17. What happens if the copper sulphate crystals taken into dry test tube ...

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    18. Discuss the extraction of copper from copper pyrites.

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    19. Name the ores of gold. Explain how it is extracted from its alluvial g...

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    20. List the ores of silver. How silver is extracted from Argentite?

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