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NEET UG CHEMISTRY MCQ: CHEMICAL BONDING & MOLECULAR STRUCTURE

1 Medium

1 of 1

Application +4 | -1

\mathrm{CaO}

and

\mathrm{NaCl}

have the same crystal structure and approximately the same ionic radii. If

U

is the lattice energy of

NaCl

, the approximate lattice of

CaO

View answer and explanation

Correct option: C

4U

Option C (

4U

) is correct because lattice energy is proportional to the product of the charges of the ions. CaO has charges of +2 and -2, while NaCl has charges of +1 and -1. Therefore, the lattice energy of CaO is approximately 4 times that of NaCl.

NEET UG CHEMISTRY MCQ: CHEMICAL BONDING & MOLECULAR STRUCTURE

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