XI Chemistry Stoichiometry Online Test Mdcat-2024

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Instructions for Chapter Stoichiometry Online Test Mdcat-2024:

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Test Details:

  • Subject: Chemistry
  • Class: 1st year or 11
  • Chapter name: Stoichiometry
  • Test: MDCAT 2024
  • Book: Sindh Textbook
  • Total No. Of MCQS: 50
  • Time Allowed: 50 Minutes
  • Price : Free
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XI Chemistry Stoichiometry Online Test Mdcat-2024

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Best Of luck MDCAT Aspirants.

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1. The branch of Science, Which deals with the properties, composition, and structure of matter and also deals with change in matter and principles with govern these changes is called _________.

2 / 50

2. Atomic weight, formula and molecular weight in gram are called__.

3 / 50

3. At S.T.P one mole of a substance occupies volume is 22.4 dm3. It is called ________.

4 / 50

4. The Sum of atomic masses of element in a molecule is called _______.

5 / 50

5. Stoichiometric calculations of a reaction give us yield called

6 / 50

6. The reactant that is consumed earlier & give least quantity of the product is called

7 / 50

7. The amount of product obtained or calculated from balanced chemical equation is

called:

8 / 50

8. 8.46gm of Na metal contains

9 / 50

9. The volume occupied by 1.4gm of N₂ at S.T.P is

10 / 50

10.

  1. 3.01 x 10²³molecules of H₂O will weight

11 / 50

11. The number of molecules in 28 grams of Nitrogen are:

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12. At STP, 22.4 dm3 of CO2 ____________ 22.4 dm3  of SO2:

13 / 50

13. The number of moles present 100 grams of water are:

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14. Molecular weight is used for the substances which are:

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15. The number of particles present in one mole are:

16 / 50

16. Atomic weight is the average weight of atoms of an element as compared to the weight

of one atom of carbon taken as:

17 / 50

17. 58.5 amu of NaCl is:

18 / 50

18. 18.0 amu of water is:

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19. Very small and very large quantities are expressed in terms of:

20 / 50

20. Number of molecules in two moles of water are:

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21. A reaction is known to have a percent yield of 80%. It the actual yield is 25 grams, what was the expected yield?

22 / 50

22. 12.044 x 10²³ atoms of oxygen contains ___________

23 / 50

23. The mass of 0.3 moles of ammonia is

24 / 50

24. The volume occupied by 1.5 mole of glucose will be

25 / 50

25. The amount of carbon dioxide produced by the combustion of 40g of methane is.

CH₄ +2O₂→CO₂+2H₂O

26 / 50

26. The number 75.66852 rounded off to 5 significant digits is

27 / 50

27. When 4 moles of propane react with 6 moles of oxygen, the mass of CO2 produced will be

C₃H₈ + 5O₂ →3CO₂ + 4H₂O

28 / 50

28. Which of the following does not represent a chemical change?

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29. Which of the following is incorrect for a chemical reaction?

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30. The most abundant element in the universe is

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31. The formula weight of the compound, Al₂ (SO₄)₃.18H₂O is:

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32. How many moles of alanine, C₃H₇NO₂, are there in 159 g of alanine?

33 / 50

33. How many atoms are in one mole of methanol (CH₃OH)?

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34. The mass in grams of 3.01 x 10²³ calcium atom is:

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35. Which one of the samples contains the large number of atoms?

36 / 50

36. The percent by mass of nitrogen in given fertilizer is HNC (NH₂)₂

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37. The amount of water produced when 8g of hydrogen is reacted with 32g of oxygen is

2H₂+O₂ 2H₂O

38 / 50

38. What volume of hydrogen at RTP would be liberated, when 8 gm of calcium reacts with excess water?

Ca + 2H₂O Ca(OH)₂ + H₂

39 / 50

39. The number of molecules in 2.5 moles of H2O?

40 / 50

40. A necklace has 12 g of diamond in it. What are the number of atoms in it?

41 / 50

41. The branch of Chemistry which deals with the calculations based on balanced chemical

equations is called

42 / 50

42. If one mole of each of the following substance is burnt in oxygen completely, which will give the largest volume of CO₂?

43 / 50

43. The Avogadro's constant is the number of?

44 / 50

44. A limiting reactant is that which

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45. Which among the following is the heaviest?

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46. Theoretical yield is always less than the actual yield because:

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47. Stoichiometry is ………………. analysis of the calculations during a chemical reaction.

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48. If the reaction of 6.5 grams of C₆H₁₂O₆ produces 2.5 grams of CO₂, what is the percent yield of CO2?

C₆H₁₂O₆-------> 2C₂H₅OH + 2CO₂

49 / 50

49. After a reaction was run, there were 12.7 grams of reagent B left over. Reagent B is the

50 / 50

50. Percent yield is found by

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