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True or False: (If false give the correct statement) 1. Silver metal can replace hydrogen gas from nitric acid. 2. The pH of rain water containing dissolved gases like SO3 , CO2 , NO2 will be less than 7. 3. At the equilibrium of a reversible reaction, the concentration of the reactants and the products will be equal. 4. Periodical removal of one of the products of a reversible reaction increases the yield. 5. On dipping a pH paper in a solution, it turns into yellow. Then the solution is basic. |
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Answer» 1. False – Silver cannot displace H2 from HNO3 acid, since it is placed below hydrogen in the activity series. 2. True 3. False – At equilibrium the concentration of the reactants and products do not change it remains constant, but the concentration of the reactants and the products will not be equal. 4. True 5. False – The solution is neutral if the solution is basic it will be green in colour. |
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