Multiple choice

Oxy-acids are those, which contain

  1. oxygen in their composition

  2. contain hydrogen together with other elements

  3. contain sulphur

  4. contain nitrogen

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A Correct answer
Explanation

 An oxyacid is an acid that contains an oxygen  atom bonded to a hydrogen atom and at least one other elements.e..g.Sulfuric acid (H2SO4), phosphoric acid (H3PO4), and nitric acid (HNO3) are all oxyacids.