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Find the oxidation number of sulphur in Na₂S₂O3.
What is the oxidation number of sulphur in K₂SO₃?
What is the oxidation number of vanadium in V₂O₅?
What is the oxidation state of nitrogen in a nitric acid molecule?
What is the oxidation state of phosphorus in a phosphoric acid molecule?
What is the oxidation number of hydrogen in magnesium hydride, \(\mathrm{MgH}_2\) ?
Which of the underlined element in the following compounds has the highest oxidation number?
Which of the following is true about the oxidation number of the elements in NH₄ClO₃.
What is the oxidation number of \(\mathrm{X}\) in \(\mathrm{XO}_4^{-}\)?
What is the oxidation number of the chromium element in potassium dichromate(VI), \(\mathrm{K}_2 \mathrm{Cr}_2 \mathrm{O}_7\) ?