Which of the following molecules is/are nonpolar? i.NH₃ ii.H₂O iii.HCl iv.CH₄ v.CH₂Cl₂ A)i only B)iv only C)iv and v D)i, ii, and iii E)i, ii, iii, iv, and v

Question

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The only nonpolar molecule among the options is iv, which is CH3-S-CH3. The presence of only carbon and hydrogen atoms (and a sulfur or oxygen) in this molecule symmetrically distributes the electrons, resulting in no net dipole moment. The other molecules have polar covalent bonds due to the electronegativity difference between the atoms and do not cancel out to form a nonpolar molecule.

Which of the Following Molecules Is/are Nonpolar