Which of the following molecules is the most | vedclass

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(C) Polarity depends on the net dipole moment of the molecule. $CH_3NO_2$ (nitromethane) contains a highly polar nitro group $(-NO_2)$ where the elect

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$CH_3NO_2$

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(C) Polarity depends on the net dipole moment of the molecule. $CH_3NO_2$ (nitromethane) contains a highly polar nitro group $(-NO_2)$ where the electronegativity difference between $N$ and $O$ is significant,and the resonance structure contributes to a large dipole moment. $CH_3NH_2$ has a dipole moment due to the $N-H$ bonds and lone pair,but it is less polar than $CH_3NO_2$. $(CH_3)_3CCl$ has a $C-Cl$ bond,but the overall symmetry and the inductive effect of methyl groups reduce its polarity. $(CH_3)_3CH$ is essentially non-polar. Therefore,$CH_3NO_2$ is the most polar molecule among the given options.

Which of the following molecules is the most polar?

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Assertion : Molecules of larger size have higher polarizability.
Reason : Polarizability is observed only in those molecules which have a permanent dipole moment.

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