JEE CHEMISTRY MCQ: SOME BASIC CONCEPTS OF CHEMISTRY

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Application +4 | -1

N_A

is Avogadro's number then number of valence electrons in

4.2 \mathrm{~g}

of nitride ions

\left(\mathrm{N}^{3-}\right)

View answer and explanation

Correct option: B

2.4 \mathrm{~N}_{\mathrm{A}}

Option B (

2.4 N_A

) is correct because each nitride ion has 8 valence electrons, and the number of moles of nitride ions is 0.3.

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