Punjab 11th Class Chemistry Stoichiometry Mcqs Test Online

Q: How can I prepare for Punjab 11th Class Chemistry Stoichiometry Mcqs Test Online?

You can prepare for Punjab 11th Class Chemistry Stoichiometry Mcqs Test Online by attempting the free online quizzes at Gotest.com.pk. We provide instant results, performance reports, and detailed explanations for every question.

Question 1

1. A necklace has 6g of diamond in it. What are the numbers of atoms in it?

Answer

1.003x10²³

Answer

6.02x10²³

Answer

12.04x10²³

Answer

3.01x10²³

Question 2

2. Which of the following statements is incorrect?

Answer

None of these

Answer

12g of Carbon gas contains one mole of atoms

Answer

1 dm³ of a 1.0 Mole dm³ solution of NaCl contains one mole of Chloride ions

Answer

28g of Nitrogen gas contains one mole of molecules of N2

Question 3

3. What is the mass of aluminum in 204 g of the aluminum oxide, Al₂O₃

Question 4

4. One mole of propane has the same ________.

Answer

Number of molecules as in one mole of ethane (C₂H₆)

Answer

Number of molecules as one mole of methane (CH₄)

Answer

Number of C-atoms as in one mole of butane (C₄H₁₀)

Answer

Mass as half a mole of hexane (C₅H₁₄)

Question 5

5. How many moles of oxygen ate needed for the complete combustion of two moles of butane?

Question 6

6. Vitamin-A has a molecular formula C₂₀H₃₀ O. The number of vitamin – A molecules in 500 mg of its capsule will be

Answer

3.01x10²²

Answer

None of these

Answer

6.02x10²³

Answer

1.05x10²³

Question 7

7. A flask contains 500 cm³ of SO₂ at STP, The flask contains

Answer

None of these

Question 8

8. 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?

Question 9

9. The reactant which is consumed earlier and gives least quantity of product is called.

Answer

Limiting reactant

Answer

Stoichiometric amount

Answer

Stoichiometry

Question 10

10. What is the mass of one mole of Iodine Molecules?

Question 11

11. When one mole of each of the following is completely burnt in oxygen, which will give the largest mass of CO₂?

Answer

Carbon Monoxide

Question 12

12. The relative atomic mass of Chlorine is 35.5. What is the mass of 2 moles of Chlorine gas?

Question 13

13. The Avogadro’s constant is the number of

Answer

Atoms in 24g of Mg

Answer

Molecules in 35.5g of Chloride

Answer

Electrons needed to deposit 24g of Mg

Answer

Atoms in 1g of Helium

Question 14

14. Which one of the following compounds contains the highest percentage by mass of nitrogen

Question 15

15. If four moles of SO₂ are oxidized to SO₃, how many moles of oxygen molecules are required.

Question 16

16. How many molecules are there in one mole of H²O?

Answer

6.023x10²³

Answer

1.084x10¹⁸

Answer

6.023x10¹⁹

Answer

None of these

Question 17

17. One mole of ethanol and one mole of ethane have an equal

Answer

Number of Atoms

Answer

Number of molecules

Answer

Number of electron

Question 18

18. 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)

Answer

None of these

Question 19

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Punjab 11th Class Chemistry Stoichiometry Mcqs Test Online

Chemistry Stoichiometry Mcqs Test Online Class 11th Punjab

Chemistry

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Chemistry Stoichiometry Mcqs Test Online Class 11th Punjab

Chemistry

Guide for Punjab Board Students

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