Engineering Board Exam Reviewer · Chemistry · medium

How many sigma ( ) and pi (π ) bonds are in an acetylene molecule (H-C C-H)?

  1. 2 and 3 π
  2. 5 and 0 π
  3. 3 and 2 π
  4. 3 and 1 π

Answer

C. 3 and 2 π

Solution

Two C-H bonds plus the triple bond (1 + 2 π).

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