Chemical Bonding - Result Question 62

37. Of the following compounds, which will have a zero dipole moment?

$(1987,1 M)$

(a) $1, 1$ -dichloroethylene

(b) cis- $1, 2$ -dichloroethylene

(c) trans- $1, 2$ -dichloroethylene

(d) None of the above

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Answer:

Correct Answer: 37. (c)

Solution:

  1. Dipole vectors in trans- $1, 2$ -dichloroethylene are at $180^{\circ}$ and directed in opposite direction, cancelling each other.