The compound which possess aromatic character will show highest dipole moment. From the given compounds the following compound will have the highest dipole moment. Because the Positive and negative ends acquire aromaticity.

Among the following compounds, the one which shows highest dipole moment is
Held on 13 Apr 2023 · Verified 6 Jul 2026.




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First and second ionization enthalpies of lithium are $520$ kJ mol$^{-1}$ and $7297$ kJ mol$^{-1}$ respectively. Energy required to convert $3.5$ mg lithium (g) into $\text{Li}^{2+}$(g) $[\text{Li(g)} \rightarrow \text{Li}^{2+}\text{(g)}]$ is _______ kJ mol$^{-1}$. (nearest integer) [Molar mass of Li $= 7$ g mol$^{-1}$]
Regarding the hydrides of group 15 elements $\mathrm{EH}_{3}(\mathrm{E}=\mathrm{N}, \mathrm{P}, \mathrm{As}, \mathrm{Sb})$, select the correct statement from the following: A. The stability of hydrides decreases down the group. B. The basicity of hydrides decreases down the group. C. The reducing character increases down the group. D. The boiling point increases down the group. Choose the correct answer from the options given below:
Which of the following elements has the highest electronegativity?
Which of the following elements has the highest electronegativity?
In a period, the first ionisation enthalpy of the element at extreme left and the negative electron gain enthalpy of the extreme right element, except noble gases, are respectively.
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