NEET UG CHEMISTRY MCQ: CHEMICAL BONDING & MOLECULAR STRUCTURE

1 Easy

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Analyzing +4 | -1

An element,

\mathrm{X}

, forms compounds of the formula

\mathrm{XCl}_{3}, \mathrm{X}_{2} \mathrm{O}_{5}

and

\mathrm{Ca}_{3} \mathrm{X}_{2}

but does not form

X C l_{5}

. The element

X

View answer and explanation

Correct option: B

N

Option B (

N

) is correct because nitrogen forms

NCl_3

N_2O_5

, and

Ca_3N_2

but cannot form

NCl_5

due to the absence of d-orbitals for expansion of its octet.

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