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

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

1. Percentage composition by mass in CO2 is:



2. Al reacts with O₂ according to: 4Al + 3O₂ → 2Al₂O₃ 27g of Al will react with how much O₂?



3. One mole of a substance is the amount of that has the same number of particles as there are atoms in exactly:



4. Number of H₂O molecules in 10g of ice are:



5. The efficiency of a chemical reaction can be expressed as:



6. 1 mol of any substance contains -------- particles:



7. N₂(g) + 3H₂(g) → 2NH₃(g) How many moles of N₂ are required to manufacture 8 moles of NH₃?



8. 1g of H₂ has:



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