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Which of the following is not correct ?...

Which of the following is not correct ?

A

`XeO_(3)` has four ` sigma ` and four `pi`-bonds

B

The hybridisation of Xe in `XeF_4` is ` sp^(3)d^(2)`

C

Among noble gases ,the occurrence ( per cent by weight ) of argon is highest in air

D

Liquid helium is used as cryogenic liquid

Text Solution

Verified by Experts

The correct Answer is:
A
`XeO_(3)` has the following structure ,

Number of `sigma`-bonds=3 , Number of `pi`-bonds =3
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    • MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-P-BLOCK ELEMENTS -Exercise 2
    1. Which of the following is not correct ?

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    2. In the long form of the periodic table the valence shell electronic co...

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    3. Concentrated nitric acid upon long standing turns yellowish-brown due ...

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    4. A boy accidently splashes a few drops of conc. H2 SO4 on his cotton sh...

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    5. The oxoacids of S having -S-S- bond is/are I. H(2)S(2)O(4) II....

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    6. When HCl reacts with finely powdered iron, it forms ferrous chloride a...

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    7. Consider H(3)PO(2),H(3)PO(3),H(3)PO(4) and H(4)P(2)O(7) . Which of the...

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    8. Draw the structure of BrF(3).

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    9. Liquor ammonia bottles are opened only after cooling. This is becaus...

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    10. Consider the following statement . I. XeOF(4) has square pyramidal s...

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    11. Ammonia forms the complex [Cu(NH3)4]^(2+) with copper ions in alkaline...

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    12. The ease of liquefaction of noble gases increases in the order

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    13. H2S reacts with O2 to form

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    14. On heating NH(4)NO3 strongly which is obtained ?

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    15. Sulphuric acid reacts with PCl5 to give

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    16. The type of bonds present in sulphuric anhydride

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    17. Elements of group 15 form compounds in +5 oxidatin state. However, bis...

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    18. When conc. HNO(3) is heated with P(2)O(5), it forms

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    19. In the laboratory H2S gas is prepared by using black lumps and dil. H...

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    20. When conc. H(2)SO(4) is heated with P(2)O(5), the acid is converted to

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