Energy Changes Question
O level Acids and Bases MCQ
Acids and Bases 1. Which one of the following can be added to lemon juice to increase its pH? A lime juice B baking powder C concentrated hydrochloric acid D ethanoic acid 2. Which one of the following can react with both acids and alkalis? A sulphur dioxide B carbon monoxide C zinc oxide D sodium oxide 3. Which one of the following has the highest pH? Aqueous ammonia is a weak alkali while sodium hydroxide is a strong alkali. A 1.00 mol/dm3 aqueous ammonia B 2.00 mol/dm3 aqueous ammonia C 1.50 mol/dm3 sodium hydroxide D 5.00 mol/dm3 ethanoic acid 4. Which one of the following acids require the largest volume of 1.00 mol/dm3 potassium hydroxide to neutralize? A 1.50 dm3 0.20 mol/dm3 HCl B 1.00 dm3 0.50 mol/dm3 H3PO4 C 1.00 dm3 1.00 mol/dm3 HCl D 1.00 dm3 1.30 mol/dm3 CH3COOH 5. What volume of 1.00 mol/dm3 rubidium hydroxide, RbOH, is required to neutralize 25.0 cm3 of 0.500 mol/dm3 hydrochloric acid? A 12.5 cm3 B 25.0 cm3 C
For part c, X represents the enthalpy change of the reaction, Y represents the total energy of the products, and the reaction is endothermic because the products have more energy than the reactants.
ReplyDeleteIs it correct, not too sure about the answer to ii.
hi urbancityowl, you are correct. Thanks!
ReplyDelete