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Chemical Bonding and Molecular Structure — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistryChemical Bonding and Molecular Structure1 Mark
MCQ
The charge in coulombs on $\ce{N^{3-}}$ ion is :
  • ✓
    $\ce{4.80 \times 10^{-19}C}$
  • B
    $\ce{1.60 \times 10^{-19}C}$
  • C
    $\ce{−3C}$
  • D
    $\ce{1.8 \times 10^{-24}C}$
✓

Answer

Correct option: A.
$\ce{4.80 \times 10^{-19}C}$
Charge on one electron $= \ce{1.6 \times 10^{-19}C}$
$\ce{N^{3-}}$ has $−3$ charge on it.
Charge on three electron $= \ce{3 \times 1.6 \times 10^{-19}C = 4.8 \times 10^{-19}C}$

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