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Identify the satements which are not cor...

Identify the satements which are not correct ?
(i) `ZnO,PbO,Sb_(2)O_(3)` are neutral oxides.
(ii) CO and NO are amphoteric oxides.
(iii) `CrO_(3),Mn_(2)O_(7),V_(2)O_(5)` are basic oxides.

A

`i,ii`

B

`i,iii`

C

`ii,iii`

D

`i,ii,iii`

Text Solution

Verified by Experts

The correct Answer is:
D
(i) `ZnO,PbO,Sb_(2)O_(3)` are amphoteric oxides that have the properties of both acids and bases. They have acidic properties against bases and basic properties against acids.
(ii) CO and NO are neutral oxides since they are oxygen poor compounds of non-metals.
(iii) `CrO_(3),Mn_(2)O_(7),V_(2)O_(5)` are acidic in nature.
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Knowledge Check

  • The basic character of oxides MgO, SrO, K_(2)O, NiO, Cs_(2)O increase in the order

    A
    `MgO gt SrO gt K_(2)O gt NiO gt Cs_(2)O`
    B
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    C
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    D
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    A
    `+3, +5, +4`
    B
    `+5, +3, +4`
    C
    `+5, +4, +3`
    D
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  • (A) Mn _(2) O _(7) and Cr O _(3) are acidic oxides. (R ) In Mn _(2) O _(7)and CrO _(3) the Mn and Cr are in their highest oxidation states.

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    B
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    C
    (A) is true but (R ) is false
    D
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