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Which of the following is arranged in th...

Which of the following is arranged in the increasing order of enthalpy of vaporization?

A

`NH_(3),PH_(3),AsH_(3)`

B

`AsH_(3),PH_(3),NH_(3)`

C

`NH_(3),AsH_(3),PH_(3)`

D

`PH_(3),AsH_(3),NH_(3)`

Text Solution

Verified by Experts

The correct Answer is:
D
Enthaply of vaporization is directly proportical to the strength of inter molecular force of attraction like hydrogen bonding vander Wall's force of attraction.
`NH rightarrow H- "bonding"`,
`PH_(3)andASH_(3)rightarrow "Vander walls bond"`.
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RESONANCE ENGLISH-P BLOCK ELEMENTS-Exercise 2 part 2 OBJECTIVE
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  2. The element which forms oxides in all oxidation states -1

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  3. Which of the following compounds does give N(2) on heating ?

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  4. A mixture of alumina and coke is heated in a current of nitrogen to ab...

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  5. The energy corresponding to second line of Balmer series for hydrogen ...

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  6. At 200^o C, hydrogen molecules have velocity 1.4 × 10^5cm s^(−1) . T...

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

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

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  9. The mixed anhydride of nitrous and nitric acid is.

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  10. Which of the following combines with Fe^(2+) ions to form brown comple...

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  11. Select the correct statement.

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  12. A gas is obtained on heating ammonium nitrate.The gas:

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  13. The gas obtained on heating lead nitrate to 400^(@) C :

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  14. A gaseous substance dissolve in water giving a pale blue solution whic...

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  15. White phosphorus may be removed from red phosphorus by :

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  16. Red phosphorus may be prepared from white phosphorus by :

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  17. Holme's signals produce burning gases which serve as a signal to the a...

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  18. Phosphorus trichloride, PCl(3) undergoes, hydrolysis at room temperatu...

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  19. Ortho phosphoric acid on heating above 300^(@)C gives :

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  20. 1 mol of H(3)PO(2), H(3)PO(3) and H(3)PO(4) will neutralise x mol NaOH...

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