AP EAMCET · Chemistry · d and f Block Elements
The formula of nickel oxide is \(\mathrm{Ni}_{0.98} \mathrm{O}_{1.00^{\circ}}\). What is the approximate percentage of \(\mathrm{Ni}^{+2}\) in it?
- A 92
- B 94
- C 96
- D 98
Answer & Solution
Correct Answer
(C) 96
Step-by-step Solution
Detailed explanation
Let there be 100 formula units of \(\mathrm{Ni}_{0.98} \mathrm{O}_{100}\). Thus, for \(100 \mathrm{O}^{2-}\) ions, there are 98 nickel ions \(\left(\mathrm{Ni}^{2+}\right.\) or \(\left.\mathrm{Ni}^{3+}\right)\). Let \(\mathrm{x}=\) number of \(\mathrm{Ni}^{2+}\) ions.…
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