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

Chemistry
JAMB 1993

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

  • A. III
  • B. IV
  • C. V
  • D. VI
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Correct Answer: Option C
Explanation

Group V elements (also known as pnictogens) form hydrides that are pyramidal in structure. The trihydrides, such as NH\(_3\) (ammonia), PH\(_3\) (phosphine), AsH\(_3\) (arsine), and SbH\(_3\) (stibine), all exhibit a pyramidal shape. 


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