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In the carbon family , the elements othe...

In the carbon family , the elements other than carbon do not form ` pn-p pi` nonds because the atomic orbitals are :

A

Small and diffuse to undergo effective lateral overlap

B

Large and diffuse to undrgo effective lateral overlap

C

Large and for too less diffuse to overlap lineraly

D

Small to overlap both laterally and linearly

Text Solution

Verified by Experts

The correct Answer is:
B
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Name two elemental forms of carbon.

Answer question numbers (a)-(d) on the basis of your understanding of the following paragraph and related studied concepts. Carbon has the unique ability to form bonds with other atoms of carbon giving rise to large molecules. This property is called catenation. These compounds may have long chains of carbon, branched chains of carbon or even carbon atoms arranged in rings. Since carbon has a valency of four, it is capable of bonding with four other atoms of carbon or atoms of some monovalent element. The bond that carbon forms with most other elements are very strong making them exceptionally stable. The reason for the formation of strong bonds by carbon is its small size. (a) Name the property which enables carbon to form bonds with other atoms of carbon.

Knowledge Check

  • Assertion : Carbon has unique ability to form p pi-p pi multiple bonds with itself and with other atomic of small size and high electronegativety. Reason : Heaviur elements of group 14th do not form p pi -p pi bonds because their atomic orbital are too large and diffuse to have effective sideways overapping.

    A
    If both assertion and reason are true and the reason is the correct explanation of the assertion.
    B
    If both assertion and reason are true but reason is not the correct explanation of the assertion.
    C
    If assertion is true but reason is false.
    D
    If assertion is false but reason is true.

  • A : Heavier elements of 14th group do not form p pi - p pi bonds . R : Atomic orbital of heavier elements are too large and do not have effective overlapping .

    A
    If both Assertion & Reason are true and the reason is the correct explanation of the assertion , then mark (1)
    B
    If both Assertion & Reason are true but the reason is not the correct explanation of the assertion , then mark (2)
    C
    If Assertion is true statement but Reason is false , then mark (3)
    D
    If both Assertion and Reason are false statements , then mark (4)

  • Carbon forms larger number of compounds because it has

    A
    low electron effinity
    B
    variable valency
    C
    catenation property
    D
    no d-orbital in valency shell

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    Carbon forms an extremely large number of carbon compounds (or organic compounds) because

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