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Which of the following is the increasing...

Which of the following is the increasing order of enthalpy of vapourisation

A

NH3, PH3, AsH3

B

AsH3 , PH3, NH3

C

NH3 , AsH3 , PH3

D

PH3, AsH3, NH3

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The correct Answer is:
D
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V PUBLICATION-The p-BLOCK ELEMENTS-QUESTION BANK
  1. For H3 PO3 and H3 PO4 the correct choice is. H3 PO3 is dibasic an...

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  2. The element which forms oxides in all oxidation states +1 to +5 is

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  3. Which of the following is the increasing order of enthalpy of vapouris...

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  4. The number of hydrogen atoms attached to phosphorus atom in hypophosph...

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  5. The number of P -O- P bonds in the structure of phosphorus pentoxide a...

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  6. Which of the following is not hydrolysed

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  7. The gases produced in the reactions Pb(NO3)2 -> Δ and 'NH4NO3' ->...

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  8. The number of sigma -bonds in ' P4O10' is

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  9. Nitrogen does not form pentahalide because

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  10. Which of the following is a cyclic oxoacid

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  11. The number of P -O- P bonds in cyclic metaphosphoric acid is zero two...

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  12. Which of the following has. ppi-dpi bonding : NO3^-, SO3^2 -, B...

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  13. Which of the following oxides of nitrogen is solid NO2 N2 O N2 O3 N...

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  14. On boiling phosphorus with KOH solution, product formed is

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  15. Which of the following isomers of phosphorus is thermodynamically most...

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  16. Which of the following when heated gives nitrogen gas

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  17. Excess of 'PCl5' reacts with conc. 'H2SO4' giving

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  18. The reaction between NH2- and N2 O gives

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  19. Reaction of 'PCl3' and Ph Mg Br would givè

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  20. The correct formula of salt formed by the neutralisation of hypophosph...

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