Which of the following is a polar compound?

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(A) compound is polar if it has a net dipole moment,which arises due to the difference in electronegativity between bonded atoms. $HCl$ is a polar mol

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$HCl$

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(A) compound is polar if it has a net dipole moment,which arises due to the difference in electronegativity between bonded atoms. $HCl$ is a polar molecule because the electronegativity difference between $H$ $(2.1)$ and $Cl$ $(3.0)$ is significant,leading to a permanent dipole moment. While $H_2Se$ and $HI$ are also polar,$HCl$ is the most commonly cited example of a simple polar covalent molecule in this context. $CH_4$ is non-polar due to its symmetric tetrahedral geometry.

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