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

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

1. 1 Atomic Mass Unit is equal to:



2. An organic compound has C = 40%, H = 6.67%, O = 53.3%. Its empirical formula is:



3. 3.0 g of Carbon on combustion gives: C+O₂→CO₂



4. Ratio of atomic mass of hydrogen to atomic mass of carbon is:



5. What volume of oxygen at STP is required to burn 500 dm³ of ethene?



6. 7.6g of CS₂ is reacted with 12.8g of O₂. Reaction: CS₂ + 3O₂ → CO₂ + 2SO₂ The limiting reactant is:



7. The total number of moles present in 2g of ethylene molecule (C₂H₄) are:



8. 9.8g of H₂SO₄ has been dissolved in excess water to ionize completely. How many H⁺ ions will it yield?



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