The Lewis dot structure of the given molecules will be the following.
As we can see in above structures that SCl2has2lonepairand2bondpair,O3hasonelonepairandtwobondpair,ClF3hastwolonepairand3bondpairandSF6has0lonepairand6bondpair
Number of lone pairs of electrons in the central atom of SCl2,O3,ClF3 and SF6, respectively, are
Held on 29 Jul 2022 · Verified 6 Jul 2026.
0,1,2&2
2,1,2&0
1,2,2&0
None of these
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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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