Among the compounds given, what is the total number of compounds having +5 oxidation state of the underlined elements? a. K4P2–––O7 b. NaAu––––Cl4 c. Rb4Na[HV10––––O28] d. I–Cl e. Ba2Xe––––O6 f. O––F2 g. Ca(Cl–––O2)2 h. N––O⊖2
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Solution
The total number of compounds having +5 oxidation state of the underlined elements is 2. The +5 oxidation state of the underlined element is in (a) K4P2–––O7 and (c) Rb4Na[HV10––––O28]. The compounds and the oxidation states of the underlined elements are shown below: a. K4P2–––O7+5 b. NaAu––––Cl4+3 c. Rb4Na[HV10––––O28]+5 d. I–Cl+1 e. Ba2Xe––––O6+8 f. O––F2+2 g. Ca(Cl–––O2)2+3 h. N––O⊖2+3