The formula of nickel oxide with metal defici | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) Let the amount of $Ni^{2+}$ ions in the crystal $Ni_{0.98}O$ be $x$.Then,the amount of $Ni^{3+}$ ions in the crystal will be $(0.98 - x)$.Since th

Vedclass · Accepted Answer

$0.96$

Vedclass · Answer

(A) Let the amount of $Ni^{2+}$ ions in the crystal $Ni_{0.98}O$ be $x$.Then,the amount of $Ni^{3+}$ ions in the crystal will be $(0.98 - x)$.Since the crystal is electrically neutral,the total positive charge must equal the total negative charge (from $O^{2-}$).$2(x) + 3(0.98 - x) = 2$$2x + 2.94 - 3x = 2$$-x = 2 - 2.94$$-x = -0.94$$x = 0.94$Therefore,the fraction of nickel existing as $Ni^{2+}$ ions is $\frac{0.94}{0.98} \approx 0.96$.

The formula of nickel oxide with metal deficiency defect in its crystal is $Ni_{0.98}O$. The crystal contains $Ni^{2+}$ and $Ni^{3+}$ ions. The fraction of nickel existing as $Ni^{2+}$ ions in the crystal is

Similar Questions

In a solid lattice,the cation has left a lattice site and is located at an interstitial position. The lattice defect is:

Point defects are present in

Select the incorrect statement for Schottky defect.

$F$-centers are

Schottky defect generally appears in

Vedclass Test Series

Exam Paper Generator

Online Exam Module