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Which of the following have Delta H(f)^(...

Which of the following have `Delta H_(f)^(º) lt 0`

A

Ozone

B

O(g)

C

P(red)

D

`S_(8)` (monoclinic)

Text Solution

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The correct Answer is:
C
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RESONANCE-NITROGEN & OXYGEN FAMILY-Exercise 2
  1. Which statement is not correct for nitrogen?

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  2. Nitrolim is obtained by passing nitrogen over:

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  3. Which of the following have Delta H(f)^(º) lt 0

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  4. CS(2) can separate a mixture of

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  5. Which of the following reaction liberate oxygen ?

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  6. The gases respectively absorbed by alkaline pyrogallon and oil of cinn...

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  7. Alkaline KI is oxidised by ozone to :

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  8. NH(3) can't be obtained by :

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  9. When H(2)S is passed through nitric acid and acidified KMnO(4) solutio...

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  10. Ammonia reacts with red -hot cupric oxide to produce

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  11. Phosphine is not obtained by the reaction

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  12. When ammonia is oxidsed by oxygen in the presence of platinum at 800^(...

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  13. Substances burn more readily in N(2)O than in air because N(2)O:

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  14. Which of the following is a mixed acid anhydride ?

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  15. When an article is bleached by SO(2) it loses its colour. The colour c...

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  16. The true statement for the acids of phosphorus. H(3)PO(2) ,H(3)PO(3) a...

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  17. Which of the following does not have S-S linkage but have O-O linkage ...

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  18. The true statement for the acids of phosphorus H(3)PO(2), H(3)PO(3) an...

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  19. Hydrolysis of one mole of peroxodisulphuric acid produces

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  20. The reaction of SO(2) with PCl(5) yield two oxohalides A and B. 'A' ca...

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