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JAMB Chemistry 1993 Question 12

Question 12

Chemical Bonding

Which group of elements forms hydrides that are pyramidal in structure?

  1. A.III
  2. B.IV
  3. C.V
  4. D.VI
Show the answer and explanation

Answer: C (V)

Explanation

Group V hydrides such as NH3 and PH3 have three bonding pairs and one lone pair on the central atom, which gives a pyramidal shape.