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JAMB Chemistry 2000 Question 13

Question 13

Chemical Bonding

The shapes of CO2, H2O and CH4 respectively are

  1. A.bent, linear and tetrahedral
  2. B.bent, tetrahedral and linear
  3. C.linear, bent and tetrahedral
  4. D.tetrahedral, linear and bent
Show the answer and explanation

Answer: C (linear, bent and tetrahedral)

Explanation

CO2 has no lone pairs on carbon, so it is linear; the two lone pairs on oxygen make H2O bent; CH4 has four bond pairs, so it is tetrahedral.