A.Find out the substances undergoing oxidation and reduction: 1. Copper Oxide reacts with Hydrogen to form Copper and water. 2. Zinc reacts with Silver nitrate to produce Zinc nitrate and silver. 3. Potassium metal reacts with water to give Potassium hydroxide and hydrogen gas. 4. Nitric acid reacts with Calcium hydroxide to produce Calcium nitrate and water 5. Aluminium reacts with copper chloride to form Aluminium chloride and Copper.
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1) cuo+h2 ----- cu+h2o
Since at reactant side copper is in
+2 o.s and at product side it becomes 0 so it undergoes reduction and hydrogen is 0 at reactant but it becomes +1 at so it undergoes oxidation
2)zn+agno3----- znno3 + ag
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