Which of the following substances has the low | vedclass

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(B) The dipole moment of a molecule depends on its symmetry and the polarity of its bonds.$A$. $cis-but-2-ene$ has a non-zero dipole moment due to its

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$CH_3-C \equiv C-CH_3$

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(B) The dipole moment of a molecule depends on its symmetry and the polarity of its bonds.$A$. $cis-but-2-ene$ has a non-zero dipole moment due to its $cis$ configuration.$B$. $but-2-yne$ $(CH_3-C \equiv C-CH_3)$ is a linear,symmetric molecule where the bond dipoles cancel each other out,resulting in a net dipole moment of $0 \ D$.$C$. $but-1-yne$ $(CH_3CH_2C \equiv CH)$ has a terminal alkyne group,which possesses a small dipole moment.$D$. $but-1-en-3-yne$ $(CH_2=CH-C \equiv CH)$ has both double and triple bonds,creating a polar structure with a significant dipole moment.Therefore,$but-2-yne$ has the lowest dipole moment.

Which of the following substances has the lowest dipole moment?

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