Chemistry-
General
Easy

Question

In compounds of type E C l subscript 3 end subscript, where E equals B comma P, As or B i, the angles C l minus E minus C l for different E are in the order

  1.  B greater than P equals A s equals B i    
  2. B greater than P greater than A s greater than B i    
  3. B less than P equals A s equals B i    
  4. B less than P less than A s less than B i    

The correct answer is: B greater than P greater than A s greater than B i


    4 N a C l plus K subscript 2 end subscript C r subscript 2 end subscript O subscript 7 end subscript plus 3 H subscript 2 end subscript S O subscript 4 end subscript rightwards arrow
    As we go down the group bond angle decreases because repulsion between bonded pairs of electron decreases.

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