It sometimes happens that two different first names have the same meaning. This has nothing surprising: both first names have the same figures of numerology. It is as in astrology: two persons belonging to the same sign present the same characteristic...
The oxidation number of potassium in potassium hydroxide is 1. 1  Formula: KOH. 2  Hill system formula: H 1 K 1 O 1. 3  CAS registry number: [1310-58-3].4  Formula weight: 56.106. 5  Class: hydroxide.6  Colour: white.7  Appearance: crystalline solid. 8  Melting point: 406Â°C.9  Boiling point: 1327Â°C. 10  Density: 2044 kg m -3.he oxidation number of potassium in potassium hydroxide is 1. 1  Formula: KOH. 2  Hill system formula: H 1 K 1 O 1. 3  CAS registry number: [1310-58-3]. 4  Formula weight: 56.106. 5  Class: hydroxide. 6  Colour: white. 7  Appearance: crystalline solid. 8  Melting point: 406Â°C. 9  Boiling point: 1327Â°C. 10  Density: 2044 kg m -3.
Oxidation Number Of Phosphorus In PH3. Here is a way to get the answer. If you place a reagent with oxidation number of H = -1 (hydride) it would produce H2. For example: KH+H2O-> KOH + H2. If you place a molecule with oxidation number of H = +1 H2 is NOT formed. NH3+ H2O -> NH4$^+$+ OH$^-$. PH$_3$ doesn't form H2 on contact with water so H is in oxidation state +1 and P is in oxidation state -3. Reaction with strong acids leads to PH$_4^+$ which has similar structure to NH$_4^+$. For these reasons even for As in AsH3 the oxidation state of As = -3.