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XeF2 on reaction with PF5 forms :...

`XeF_2` on reaction with `PF_5` forms :

A

`[XeF_3]^(-) [PF_4]^(+)`

B

`[XeF_3]^(+) [PF_4]^(-)`

C

`[XeF]^(+) [PF_6]^(-)`

D

`[XeF_2]^(+) [PF_5]^(-)`

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XII BOARDS PREVIOUS YEAR-QUESTION PAPER 2022 TERM 1 SET 2-SECTION -B
  1. Number of lone pairs of electrons on Xe atoms in XeF(2), XeF(4), XeF(6...

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  2. Form of sulphur which shows paramagnetic behaviour

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  3. An element with density 3 g cm^(-3) forms a bcc lattice with edge leng...

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  4. In the following reaction : CH(3)-Br underset("dry ether") overset(...

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  5. Which of the following has greatest reducing power?

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  6. The freezing point of a 0.2 molal solution of a non-electrolyte in wat...

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  7. Calculate the packing efficiency for bcc lattice.

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  8. NO2 gas dimerises because :

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  9. A compound forms hcp structure. The number of tetrahedral voids in 0.5...

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  10. XeF2 on reaction with PF5 forms :

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  11. Arrange the following compounds in decreasing order of their acidic ch...

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  12. Which of the following compound undergoes racemistation on hydrolysis ...

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  13. Which of the following is not true ?

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  14. The IUPAC name of isobutyl bromide is :

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  15. Chlorobenzene when treated with sodium in dry ether gives Diphenyl . I...

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  16. Assertion (A) : NH3 is less basic than PH3 Reason (R) : Nitrogen is...

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  17. Assertion: Osmotic pressure is a colligative property. Reason: Osmot...

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  18. Assertion (A) : Aryl halides are extremely less reactive towards nucle...

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  19. Assertion (A) : Due to Frenkel defect there is no effect on density of...

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  20. Assertion (A) : Ozone is a powerful oxidising agent in comparison to O...

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