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Liquide ammonia is used for refrigeratio...

Liquide ammonia is used for refrigeration beacause

A

Both A and R are correct and R is the correct explanation of A

B

Both A and R are correct and R is not the correct explanation of A

C

A is correct R is wrong

D

A is wrong R is correct

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The correct Answer is:
B
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Statement-1 : Liquid NH_(3) is used for refrigeration. Statement-2 : Enthalpy of vapourisation of ammonia is very large.

NARAYNA-15TH GROUP ELEMENTS-Level-V
  1. Assertion (A) : PH(3) is more basic than NH(3) Reason (R) : EN of N ...

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  2. Assertion : Bond energy and bond dissociation energy have identical va...

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  3. Liquide ammonia is used for refrigeration beacause

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  4. N(2)O is an acid anhydride of HNO(3).

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  5. Assertion: White phosphorous is more stable than red phosphorous Rea...

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  6. Why is N(2)O(5) more acidic than N(2)O(3) ?

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  7. Assertion: Nitric oxide is paramagnetic in the liquid and solid states...

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  8. Ammonium salts give a brown precipitate with Nessler's reagent due to ...

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  9. Assertion: Na(2)HPO(3) is an acidic salt Reason: An acidic salt cont...

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  10. Anisole with conc. HNO(3) and conc. H(2)SO(4) gives

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  11. The State of hybridisation of phosphorus (Z=15) in phosphate ion (PO(4...

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  12. Assertion: Phosphorous acid is a dibasic acid Reason: In phosphorous...

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  13. Assertion BF(3) has greater dipole momnet than H(2)S Reasoning Fluor...

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  14. Assertion: White phosphorous is more stable than red phosphorous Rea...

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  15. The sum of bascities of H(3)PO(4), H(3)PO(3) and H(3)PO(2) is

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  16. The neutral oxide is

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  17. In H(6)P(6)O(18),P(4)O(10) how many P-O-P bonds are present respective...

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  18. Number of sigma and pi bonds present in :

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  19. Boric acid on heating at 100^@ C, gives (X). (X) on heating at 160^@ C...

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  20. White phosphorus when heated with conc.NaOH solution in an inert atmos...

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