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MDCAT Past Papers - ETEA - Chemistry - Chap No 1 Quiz

Attempt 10 MCQs on MDCAT Past Papers - ETEA - Chemistry - Chap No 1 | Quiz 1

1. Which of the following contains the same number of molecules as 22 gram of carbon dioxide?



2. Molecular mass = 60, empirical formula = CH₂O. Molecular formula is:



3. One molecule of O₂ has the same mass as:



4. The reactant which is consumed first in a chemical reaction is called:



5. What Mass of CaCO₃ give 48.8 Liters measured at (STP) of CO₂ on strong heating



6. How many moles are there in 60g of sodium hydroxide (NaOH)?



7. Heating 24.8 g of copper carbonate (CuCO₃) in a crucible produced only 13.9 g of copper oxide (CuO). What is the percentage yield of copper oxide (CuO)?



8. Actual yield will reach the ideal (theoretical) value if the % yield of the reaction is



9. What is the mass of 50g of calcium carbonate (CaCO₃)?



10. How many grams of CO₂ can be produced by thermally decomposing 10 moles of ZnCO₃?



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