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Oxygen is always divalent while sulphur ...

Oxygen is always divalent while sulphur can form 2, 4 and 6 bonds because

A

High electronegativity of Oxygen than Sulphur

B

Large size of Sulphur atom

C

High ionisation potential of Oxygen

D

Availability of Vacant d-orbitals in the valency shell of Sulphur

Text Solution

Verified by Experts

The correct Answer is:
D
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Oxygen exists as a gas, while sulphur exists as a solid Why ?

The mass of an oxygen atom is half that of a sulphur atom. Can we decide on this basis that the density of sulphur vapour relative to oxygen is 2? (a) Yes, (b) No

Knowledge Check

  • Oxygen is always divalent whereas sulphur can from 2,4 and 6 bonds. This is because

    A
    oxygen is more electronegative than sulphur
    B
    sulphur contains d-orbitals whereas oxygen does not
    C
    sulphur has larger atomic radius than oxygen
    D
    sulphur is more electronegative than oxygen.

  • Oxygen is gas but sulphur is solid because

    A
    molecular mass of sulphur is much higher than of oxygen
    B
    oxygen is a stronger oxidising agent than sulphur
    C
    boiling point of sulphur is much higher than that of oxygen
    D
    oxygen is composed of discrete molecules while sulphur is polymeric

  • Acetylene does not form hydrogen bond because :

    A
    C is less electronegative than hydrogen
    B
    Electronegativity of C and H are exactly equal
    C
    Carbon does not have any lone pair of electrons
    D
    None of the above

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    Oxygen differs from the other elements of the group. Compounds of oxygen with metals are more ionic in nature and hydrogen bonding is more important for oxygen compounds. Oxygen is never more than divalent beacasue when it hs formed two covalent bonds, there are no low energy orbitals which can be used for form. further bonds. However, the elements S,Se,Te and Po have empty d- orbitals which may be used for bonding, and they can form four or six bonds by unpairing electrons. The higher oxidation states become less stable on decending the group. The bond between S and O, or Se and O, are much shorter than might be expected for a single bond owing to rho pi - dpi interaction between the p- orbital of oxygen and d- orbital of S or Se. Which of the following statemet is incorrect ?

    Covalency of oxygen cannot exceed 2 unlike sulphur which can show +4 or +6 because

    The elements oxygen and sulphur are called chalcogens because

    Sulphur trioxide is not directly dissolved in water to form sulphuric acid because

    Statement-1 : Pressure on a body is always compressive while stress can be compressive or tensile. And Statement-2 : Pressure is always normal to the area while stress can be either normal or tangential.

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