Punjab 11th Class Chemistry Stoichiometry Mcqs Test Online Chemistry Stoichiometry Mcqs Test Online Class 11th Punjab 123456789101112131415161718Show paginator Hide paginator 6% Question 1 of 18Chemistry 1. A flask contains 500 cm³ of SO₂ at STP, The flask contains 40 g 100 g None of these 50 g Question 1 of 18Question 2 of 18 2. How many moles of oxygen ate needed for the complete combustion of two moles of butane? 10 13 8 2 Question 2 of 18Question 3 of 18 3. One mole of ethanol and one mole of ethane have an equal Mass Number of Atoms Number of moleculesNumber of electron Question 3 of 18Question 4 of 18 4. A necklace has 6g of diamond in it. What are the numbers of atoms in it? 1.003x10²³ 6.02x10²³ 12.04x10²³ 3.01x10²³Question 4 of 18Question 5 of 18 5. Methane reacts with steam to form H₂ and CO as shown below, What volume of H₂ can be obtained from 100 cm³ of methane at the standard temperature and pressure? 100 cm³300 cm³ 150 cm³ 200 cm³ Question 5 of 18Question 6 of 18 6. The relative atomic mass of Chlorine is 35.5. What is the mass of 2 moles of Chlorine gas? 18.75g35.5g 142g 71g Question 6 of 18Question 7 of 18 7. Which one of the following compounds contains the highest percentage by mass of nitrogen NH₄OHN₂H₄ NH₃ NO Question 7 of 18Question 8 of 18 8. Vitamin-A has a molecular formula C₂₀H₃₀ O. The number of vitamin – A molecules in 500 mg of its capsule will be 1.05x10²³ 6.02x10²³ None of these3.01x10²² Question 8 of 18Question 9 of 18 9. Which of the following statements is incorrect? 12g of Carbon gas contains one mole of atoms None of these 28g of Nitrogen gas contains one mole of molecules of N2 1 dm³ of a 1.0 Mole dm³ solution of NaCl contains one mole of Chloride ions Question 9 of 18Question 10 of 18 10. What volume of SO₂ at room temperature and pressure is produced on heating 9.7g of Zinc Sulphide (ZnS) if reaction takes place as follows 2ZnS(g) + 3O₂(g) → 2ZnO(g) + 2SO₂(g) 1.2 dm³ None of these 3.6 dm³ 2.4 dm³ Question 10 of 18Question 11 of 18 11. The Avogadro’s constant is the number of Atoms in 24g of MgElectrons needed to deposit 24g of Mg Molecules in 35.5g of Chloride Atoms in 1g of Helium Question 11 of 18Question 12 of 18 12. What is the mass of aluminum in 204 g of the aluminum oxide, Al₂O₃ 27 g 26 g 108 g 54 g Question 12 of 18Question 13 of 18 13. The reactant which is consumed earlier and gives least quantity of product is called. Reactant Limiting reactant Stoichiometric amount Stoichiometry Question 13 of 18Question 14 of 18 14. What is the mass of one mole of Iodine Molecules? 106 g 74 g 254 g 127 gQuestion 14 of 18Question 15 of 18 15. How many molecules are there in one mole of H²O? None of these 6.023x10¹⁹ 6.023x10²³ 1.084x10¹⁸ Question 15 of 18Question 16 of 18 16. When one mole of each of the following is completely burnt in oxygen, which will give the largest mass of CO₂? Carbon Monoxide Diamond MethaneEthane Question 16 of 18Question 17 of 18 17. If four moles of SO₂ are oxidized to SO₃, how many moles of oxygen molecules are required. 0.5 1.5 1.0 2.0Question 17 of 18Question 18 of 18 18. One mole of propane has the same ________. Mass as half a mole of hexane (C₅H₁₄) Number of molecules as in one mole of ethane (C₂H₆)Number of C-atoms as in one mole of butane (C₄H₁₀) Number of molecules as one mole of methane (CH₄) Question 18 of 18 Loading... Test By Subject Punjab Test By Topics 11th Class Chemistry You Can Learn and Gain more Knowledge through our Online Quiz and Testing system Just Search your desired Preparation subject at Gotest.