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The existence of lower oxidation state t...

The existence of lower oxidation state than the group oxidation state of group 13 and 14 elements is explained on the basis of `"………….."`.

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The correct Answer is:
inert pair effect
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Knowledge Check

  • General oxidation state shown by group 13 elements is

    A
    `+1 and +3`
    B
    `+1,+2 and +3`
    C
    `+2,+3 and +4`
    D
    `+1 and +4`

  • Oxidation state of zero group elements is

    A
    `-1`
    B
    `+1`
    C
    0
    D
    `-2`

  • The stability of +2 oxidation state of Pb can be explained on the basis of

    A
    electronic configuration
    B
    inert pair effect
    C
    resonance
    D
    small size of `Pb^(2+)` ion
    • PRADEEP-SOME p-BLOCK ELEMENTS-TEST YOUR GRIP (FILL IN THE BLANKS)
    1. The existence of lower oxidation state than the group oxidation stat...

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    2. The most stable oxidation state of aluminum is "……………." while that ...

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    3. Tl^(3+) acts an "………….." agent.

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    4. Boron forms only "………….." compounds while aluminium forms both "…………....

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    5. Aluminium is "………….." in nature and dissolves in both dilute hydrochl...

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    6. Boron compouns act as Lewis acid because of their "………….." nature.

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    7. AlCl(3) is a Less acidic than BCl(3).True or False

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    8. When treated with conc. HNO(3) aluminium is rendered "………….." due to t...

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    9. Orthoboric acid on strong heating gives "…………..".

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    10. The molecular formula of inorganic benzene is "………….." and is obtained...

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    11. The two types of bonds present in diborane are "………….." and "…………..".

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    12. An alloy of copper and aluminium which has beautiful golden yellow col...

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    13. The structure of N(CH(3))(3) is "………….." while that of N(SiH(3))(3) is...

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    14. SnCl(2) acts as a .............................. agent.

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    15. On reactly discovered allotrope, C(60), is known as "…………..".

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    16. The C-C bond length in diamond is "………….."while in graphite it is "………...

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    17. "………….." is produced by action of conc. H(2)SO(4) on potassium ferroc...

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    18. Dehydration of formic acid gives "…………..".

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    19. Out of CO and CO(2), "………….." forms complexes.

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    20. The basis building unit of silicates is "………….." .

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