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MDCAT Past Papers - IBA - Chemistry - Chap No 1 - 2025 Quiz

Attempt 10 MCQs on MDCAT Past Papers - IBA - Chemistry - Chap No 1 (Year 2025) | Quiz 1

1. What is 50% yield when actual yield and theoretical yield are 2 g and 4 g respectively?



2. Consider the given reaction: N2+3H2→2NH3. If 56 g of N2 reacts with 12 g of H2 and produces 51 g of NH3, what is the theoretical yield (TY) of NH3 and the percentage yield (PY) of the reaction? (Molar mass of N2 = 28 g/mol, H2 = 2 g/mol and NH3 = 17 g/mol)



3. The mass of hydrogen gas needed to produce 51g ammonia:



4. When pressure is 1520 torr then density of oxygen gas will be:



5. One of Mg is burnt with 32g of oxygen to form MgO, amount of excess reagent left is?



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