Multiple choice

In compounds of type YCl3, where Y = B, N, P or As, the angles Cl-Y-Cl for different E are in the order of ________.

  1. AsCl3 > PCl3 > NCl3 > BCl3

  2. BCl3 > NCl3 > PCl3 > AsCl3

  3. BCl3 > AsCl3 > PCl3 > NCl3

  4. BCl3 > PCl3 > NCl3 > AsCl3

  5. AsCl3 > NCl3 > PCl3 > BCl3
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

BCl3: sp2 hybridization, trigonal planar shape, bond angle 120o NCl3 , PCl3 , AsCl3 : sp3 hybridization, trigonal pyramidal shape, bond angle < 109o 28’ and decreases from NCl3 to AsCl3 Hence correct order of Cl-Y-Cl bond angel is BCl3 > NCl3 > PCl3 > AsCl3

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