Chemistry-
General
Easy

Question

Which one of the following has the highest boiling point?

  1. A s H subscript 3 end subscript    
  2. S b H subscript 3 end subscript    
  3. P H subscript 3 end subscript    
  4. N H subscript 3 end subscript    

The correct answer is: S b H subscript 3 end subscript


    P H subscript 3 end subscript less than A s H subscript 3 end subscript less than N H subscript 3 end subscript less than S b H subscript 3 end subscript
    negative 87.5 degree C comma blank minus 62.4 ℃ comma blank minus 34.5 ℃ comma blank minus 18.4 ℃
    There is association by H-bonding in N H subscript 3 end subscript but molar mass of S b H subscript 3 end subscript greater than greater than N H subscript 3 end subscript makes it highest boiling point liquid

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