Chapter 1 Basic Concepts Chemistry 11th Class Punjab MCQ Tests
11th Class Chemistry Chapter 1 MCQ Tests
Chapter 1 of 11th Class Chemistry has 35 questions. If you take an online MCQ test, the system will randomly choose the questions. If you want to take the quiz by chapter then click the start test button.
Total Questions: 35
Total Marks: 35
Time: 35 Mins
Total Questions: 35
Total Marks: 35
Time: 35 Mins
35Min : 00 Sec Remaining
Question # 1
What is the percentage yield of the reaction?
Question # 2
In a chemical reaction, the reactant remaining after all of the other reactant has been used up is referred to as which of the following?
Question # 3
Avogadros number represents the number of atoms in
Question # 4
What is required for determination of percentage composition of elements in a molecule?
Question # 5
Amount of 58.5 amu of NaCl in grams is:
Question # 6
A 20.0 g sample of Al reacts to produce 32.7 g of Al2O3. What is the percentage yield of the reaction?
Question # 7
How many grams of sulfur are there in a 3-mole sample of Al2(SO4)3?
Question # 8
Which of the following is the limiting reactant in a chemical reaction?
Question # 9
What happens when the limiting reactant in a chemical reaction is completely used up?
Question # 10
Ions can be generated by which of the following?
Question # 11
Atomic Theory was presented by _____.
Question # 12
What is the percentage of carbon in sodium carbonate, N a 2 C O 3 ? Given atomic weights: C=12 g/mol; O=16 g/mol; Na=23 g/mol.
Question # 13
What is the average atomic mass of magnesium?
Question # 14
If you calculated a theoretical yield of 58.2 g, but the actual yield is 51.9 g. The percent yield is _____.
Question # 15
Balance the following equation and then using it select the correct amount of water in grams produced from 9 moles of hydrogen gas: H2 + O2 → H2O
Question # 16
What is the mass in grams of one atom of carbon?
Question # 17
Choose the correct statement about gaining of an electron by an atom.
Question # 18
What is the percentage of oxygen in sucrose ( C 12 H 22 O 11 )?
Question # 19
Which of the following is true about the isotopes?
Question # 20
Formation of a cation is a/an _____.
Question # 21
Mass of a mole of electrons is _____.
Question # 22
When a molecule loses an electron it becomes _____.
Question # 23
The theoretical yield of a particular reaction is 167.5 grams of product. If after performing the reaction in the laboratory, you recovered 153.2 grams of the product. What is your percent yield?
Question # 24
Carbon disulfide undergoes a single displacement reaction with oxygen to form carbon dioxide. If 100 grams of carbon dioxide are reacted with 50 grams of oxygen, what will the limiting reagent be?
Question # 25
Hydrochloric acid reacts with calcium to form hydrogen and calcium chloride. If 100 grams of hydrochloric acid reacts with 100 grams of calcium chloride, how much of the nonlimiting reagent will be left over after the reaction is complete?
Question # 26
1 mole of a substance contains which of the following?
Question # 27
Calculate the mass percent composition of potassium in a potassium ferricyanide, K 3 [ F e ( C N ) 6 ] molecule. Where, molar mass of K 3 [ F e ( C N ) 6 ] =329.27 g/mol, molar mass of K=39.10 g/mol.
Question # 28
Which of the following statements is FALSE?
Question # 29
Theoretical yield is _____.
Question # 30
What is the average atomic mass of chlorine?
Question # 31
How many electrons weigh one kilogram?
Question # 32
What is the percent composition of carbon in vitamin E, C29H50O2? Molar mass of vitamin E=430.69 g/mol.
Question # 33
Calculate the number of atoms in a 10.0 gram sample of aluminum.
Question # 34
The number of peaks obtained in mass spectrometry shows _____.
Question # 35
Heavy water is the oxide of _______.
Total Questions
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Question # 1
What is the percentage yield of the reaction?
Question # 2
In a chemical reaction, the reactant remaining after all of the other reactant has been used up is referred to as which of the following?
Question # 3
Avogadros number represents the number of atoms in
Question # 4
What is required for determination of percentage composition of elements in a molecule?
Question # 5
Amount of 58.5 amu of NaCl in grams is:
Question # 6
A 20.0 g sample of Al reacts to produce 32.7 g of Al2O3. What is the percentage yield of the reaction?
Question # 7
How many grams of sulfur are there in a 3-mole sample of Al2(SO4)3?
Question # 8
Which of the following is the limiting reactant in a chemical reaction?
Question # 9
What happens when the limiting reactant in a chemical reaction is completely used up?
Question # 10
Ions can be generated by which of the following?
Question # 11
Atomic Theory was presented by _____.
Question # 12
What is the percentage of carbon in sodium carbonate, N a 2 C O 3 ? Given atomic weights: C=12 g/mol; O=16 g/mol; Na=23 g/mol.
Question # 13
What is the average atomic mass of magnesium?
Question # 14
If you calculated a theoretical yield of 58.2 g, but the actual yield is 51.9 g. The percent yield is _____.
Question # 15
Balance the following equation and then using it select the correct amount of water in grams produced from 9 moles of hydrogen gas: H2 + O2 → H2O
Question # 16
What is the mass in grams of one atom of carbon?
Question # 17
Choose the correct statement about gaining of an electron by an atom.
Question # 18
What is the percentage of oxygen in sucrose ( C 12 H 22 O 11 )?
Question # 19
Which of the following is true about the isotopes?
Question # 20
Formation of a cation is a/an _____.
Question # 21
Mass of a mole of electrons is _____.
Question # 22
When a molecule loses an electron it becomes _____.
Question # 23
The theoretical yield of a particular reaction is 167.5 grams of product. If after performing the reaction in the laboratory, you recovered 153.2 grams of the product. What is your percent yield?
Question # 24
Carbon disulfide undergoes a single displacement reaction with oxygen to form carbon dioxide. If 100 grams of carbon dioxide are reacted with 50 grams of oxygen, what will the limiting reagent be?
Question # 25
Hydrochloric acid reacts with calcium to form hydrogen and calcium chloride. If 100 grams of hydrochloric acid reacts with 100 grams of calcium chloride, how much of the nonlimiting reagent will be left over after the reaction is complete?
Question # 26
1 mole of a substance contains which of the following?
Question # 27
Calculate the mass percent composition of potassium in a potassium ferricyanide, K 3 [ F e ( C N ) 6 ] molecule. Where, molar mass of K 3 [ F e ( C N ) 6 ] =329.27 g/mol, molar mass of K=39.10 g/mol.
Question # 28
Which of the following statements is FALSE?
Question # 29
Theoretical yield is _____.
Question # 30
What is the average atomic mass of chlorine?
Question # 31
How many electrons weigh one kilogram?
Question # 32
What is the percent composition of carbon in vitamin E, C29H50O2? Molar mass of vitamin E=430.69 g/mol.
Question # 33
Calculate the number of atoms in a 10.0 gram sample of aluminum.
Question # 34
The number of peaks obtained in mass spectrometry shows _____.
Question # 35
Heavy water is the oxide of _______.
Total Questions
1234567891011121314151617181920212223242526272829303132333435
Chemistry MCQ Test by Topics
- +1.1 Atom
- +1.1.1 Evidence Of Atoms
- +1.1.2 Molecule
- +1.1.3 Ion
- +1.1.4 Molecular Ion
- +1.2 Relative Atomic Mass
- +1.3 Isotopes
- +1.3.1 Relative Abudndance Of Isotopes
- +1.3.2 Determination of Relative Atomic Masses of Isotpes by Mass Spectrometry
- +1.3.3 Average Atomic Masses
- +1.4 Analysis of a Compound-Empirical And Molecular Formulas
- +1.4.1 Empirical Formula
- +1.4.2 Empirical Formula From Combustion Analysis
- +1.4.2.1 Combustion Analysis
- +1.4.3 Molecular Formula
- +1.5 Concept of Mole
- +1.5.1 Avogadros Number
- +1.5.2 Molar Volume
- +1.6 Stoichiometry
- +1.6.1 Example(11):
- +1.6.2 Example(12):
- +1.7 Limiting Reactant
- +1.7.1 Identification of Limiting Reactant
- +1.8 Yield
Chemistry
11th Class Online Classes 2026
Updated on: 29-08-2026
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