MCQ
Experiment shows that ${H_2}O$ has a dipole moment while $C{O_2}$ has not. Point out the structures which best illustrate these facts

  • B
    $O = C = O\,;\,\,\,H - O - H$
  • C

  • D
    $\begin{array}{*{20}{c}}
      {O\,\,\,\,\,\,} \\ 
      {||\,\,\,\,\,\,\,\,} \\ 
      {C = O} 
    \end{array}$ ; $\begin{array}{*{20}{c}}
      {\,\,H\,\,\,\,\,\,\,\,\,} \\ 
      {|\,\,\,\,\,\,\,\,\,} \\ 
      {O - H} 
    \end{array}$

Answer

Correct option: A.

(a) Structure of $C{O_2}$ is linear $O = C = O$ while that of ${H_2}O$ is as below i.e. bent structure so in $C{O_2}$ resultant dipole moment is zero while that of ${H_2}O$ has some value.

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