Order of covalent bond: A. $\mathrm{KF}>\mathrm{KI}$; $\mathrm{LiF}>\mathrm{KF}$ B. $\mathrm{KF} \mathrm{KF}$ C. $\mathrm{SnCl}_4>\mathrm{SnCl}_2 ; \mathrm{CuCl}>\mathrm{NaCl}$ D. $\mathrm{LiF}>\mathrm{KF} ; \mathrm{CuCl} \mathrm{NaCl}$ Choose the correct answer from the options given below:

NEET UG CHEMISTRY MCQ: CHEMICAL BONDING & MOLECULAR STRUCTURE

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Analyzing +4 | -1

Order of covalent bond:

A.

\mathrm{KF}>\mathrm{KI}

;

\mathrm{LiF}>\mathrm{KF}

\mathrm{KF}<\mathrm{KI}

;

\mathrm{LiF}>\mathrm{KF}

\mathrm{SnCl}_4>\mathrm{SnCl}_2 ; \mathrm{CuCl}>\mathrm{NaCl}

\mathrm{LiF}>\mathrm{KF} ; \mathrm{CuCl}<\mathrm{NaCl}

\mathrm{KF}<\mathrm{KI} ; \mathrm{CuCl}>\mathrm{NaCl}

Choose the correct answer from the options given below:

View answer and explanation

Correct option: C

B, C, E only

Option C (B, C, E only) is correct because it correctly describes the trends in covalent character based on Fajan's rule and charge density.