SATHEE: The Solid State - Result Question 34

The Solid State - Result Question 34

####34. Formula of nickel oxide with metal deficiency defect in its crystal is $N i_{0.98} O$ . The crystal contains $N i^{2 +}$ and $N i^{3 +}$ ions. The fraction of nickel existing as $N i^{2 +}$ ions in the crystal is

(a) 0.31

(b) 0.96

(d) 0.50

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Solution:

(b) $N i_{0.98} O = (N i^{2 +})_{x} (N i^{3 +})_{0.98 - x} (O^{2 -})_{1}$

Net charge $= 0$

$\begin{aligned} [x \times 2] + [(0.98 - x) \times 3] + [- 2 \times 1] = 0 \\ x = 0.94 \end{aligned}$

Fraction of nickel existing as

$N i^{2 +} = \frac{0.94}{0.98} = 0.959 \approx 0.96$

The Solid State - Result Question 34

Solution:

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The Solid State - Result Question 34

Solution:

Engineering Preparation

Medical Preparation

NCERT Books & Solutions

Important Resources

Other Resources

Syllabus

Test Platform

Sample Mock Test

Mentorship

NCERT Exercise Video Solution

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