11th Class Chemistry Chapter 01 MCQs with Answers

Welcome to the 11th Class Chemistry Chapter 01 MCQs Online Test. We are presenting you with top MCQ questions from the 11th Class Chemistry Chapter Basic concept of Chemistry

We want to tell you that you can find all the 11th Class Chemistry Chapter 01 MCQs online tests on our website. These online tests are great for learning and as well as for scoring maximum marks in your Intermediate Exams. We are making these Class 11 Chemistry MCQs online tests for those who want full marks in their exams. Attempt all these Grade 11 Chemistry Online Multiple Choice Questions MCQs before going for the exam and it will be beneficial for you! These online tests contain all the important multiple choice questions in the important topics of the FSC Part 1  Chemistry Chapter 01 Basic concept of Chemistry

11th Class Chemistry Chapter 01 MCQs with Answers

Youth For Pakistan has provided an excellent opportunity for the students of the 11th class to prepare their Chemistry Chapter 01 Basic concept of Chemistry online with the MCQs test.

This is a free platform for students to prepare for Chemistry Exams for Class 11 to get the best accomplishments in annual exams. 11th class Students can analyze themself by attempting this online test system as many times as they want until they find themself fully prepared.

MCQs Class 11 Chemistry with Answers

The purpose of these online MCQs tests is to help you evaluate your 11th Class Chemistry Chapter 01 MCQs. These Multiple Choice Questions (MCQs) will prepare you for your academic success in the 11th Class Exams. 11th Class Chemistry Chapters include Chapter 1 Basic concept, Chapter 2 Experimental Techniques in Chemistry, Chapter No 3 Gases, Chapter 4 Liquids & Solids, Chapter 5 Atomic Structure, Chapter 6 Chemical Bonding, Chapter 7 Thermochemistry, Chapter 8 Chemical Equilibrium, Chapter 9 Solutions, Chapter 10 Electrochemistry and Chapter 11 Reaction Kinetics

What is the Basic concept of Chemistry?

Chemistry deals with the composition, structure, and properties of matter. These aspects can be best described and understood in terms of basic constituents of matter: atoms and molecules. That is why chemistry is called the science of atoms and molecules.

Chapter No 1 Basic concept

1. The mass of one mole of the electron is:

  • 1.008 mg
  • 0.184 mg
  • 0.54 mg
  • 0.054 mg

2. 27 g of Al will react with how much mass of Oto produce Al2OChoose which one is correct option

  • 8 g of oxygen
  • 16 g of oxygen
  • 32 g of oxygen
  • 24 g of oxygen

3. What is the number of moles of NOwhich contains 16 g of oxygen:

  • 0.25
  • 0.50
  • 1.0
  • 1.50

4. What will be the volume occupied by 2.0 g of Ne at STP:

  • 2.24 dm3
  • 22.4 dm3
  • 1.12 dm3
  • 112 cm3

5. A sample in the ionization chamber of mass spectrometer is ionized by which among the following:

  • Electrons
  • Proton
  • Neutron
  • Nucleus

6. Which one of the following pair is not iso-electronic:

  • CO, N2
  • Na+, Ne
  • Ca, Ar
  • K+, Ar

7. Which one of the following is not a molecular ion:

  • N+2
  • CH+4
  • C6H+8
  • NH+4

8. 180 g of glucose contains number of hydrogen atoms:

  • 3.6 × 1023
  • 6.0 × 1023
  • 7.2 × 1023
  • 7.2 × 1024

9. Who among the following first of all determined atomic masses of elements:

  • J. Berzelius
  • J.J. Thomson
  • Johon Dalton
  • Democritus

10. The mass of H-atom is 1.008 a.m.u. Its mass in kg should be

  • 1.008 × 1.661 × 1023 kg
  • 1.008

1.661 × 10-27kg

  • 1.008 × 1.661 × 1027 kg
  • 1.661 × 1027 kg

11. The atomicity of one molecule of Haemoglobin is:

  • 10,000
  • 68,000
  • 17,000
  • 100,000

12. Formation of uninegative ion is:

  • Exothermic
  • Endothermic
  • Both (a) & (b)
  • None of these

13. Which one among of the following elements has nine isotopes:

  • Ca
  • Pd
  • Cd
  • Sn

14. Which one among of the following will form single peak in mass spectrograph:

  • Iodine
  • Arsenic
  • Fluorine
  • All of these

15. Which one of the following contains maximum no. of molecules:

  • 16.0 g of CH4
  • 16.0 g of O2
  • 16.0 g of SO2
  • 16.0 g of H2O

16. What the Atoms of all the elements always contain in nucleus called:

  • Proton
  • Proton and neutron
  • Neutron
  • Electron and neutron

17. Actual yield of a chemical reaction is always less than theoretical yield because of which among the following:

  • Side reactions
  • Wastage of products
  • Reversible reactions
  • All of these

18. Mass of sodium in 53 g of Na2COis:

  • 23 g
  • 46 g
  • 92 g
  • 106 g

19. 20 moles each of Mg and Oreact to form MgO. The amount of MgO formed would be:

  • 20 g
  • 400 g
  • 800 g
  • 1600 g

20. The number of peaks obtained in mass spectrometry shows the no of which among the following:

  • Charge on isotope
  • Mass of isotope
  • Number of isotopes
  • Relative abundance of isotopes

21. What is the Molecular mass of water (18 g) means:

  • Mole
  • Gram mole
  • Gram molecule
  • All of these

22. Which one among of the following ion formation is always exothermic:

  • Uninegative
  • Unipositive
  • Dinegative
  • Dipositive

23. Which among the following the number of isotopes of elements with even mass number and even atomic number are:

  • 280
  • 300
  • 154
  • 54

24. Which among of the following is not the mono isotopic element:

  • Arsenic
  • Uranium
  • Iodine
  • Gold

25. What Percentage of oxygen in calcium carbonate is:

  • 40%
  • 48%
  • 12%
  • 16%

26. Which one of the following substances is used as COabsorber in combustion analysis:

  • Mg(ClO4)2
  • 50% KOH
  • Lime water
  • Dilute NaOH

27. Which one of the following properties is always in whole number:

  • Atomic mass
  • Atomic radius
  • Atomic volume
  • Atomic number

28. What is the mass of one mole of Iodine:

  • 53 g
  • 74 g
  • 127 g
  • 254 g

29. 0.5 moles of H2SOcontains “X” moles of oxygen atoms “X” is:

  • 0.5
  • 1.0
  • 2.0
  • 4.0

30. What will weigh more:

  • 2 mole N2
  • 1 mole O3
  • 2 mole O2
  • 2 mole CO2

31. The number of electrons in one mole of His:

  • 6.02 × 1023
  • 3.01 × 1023
  • 12.04 × 1023
  • Indefinite

32. COis an example of which among the following:

  • Free radical
  • Cationic molecular ion
  • Anionic molecular ion
  • Stable molecule

33. Relative atomic mass is the mass of an atom of an element as compared to the mass of one atom of:

  • Oxygen
  • Hydrogen
  • Nitrogen
  • Carbon

34. Percentage of oxygen in H2O is:

  • 80%
  • 88.8%
  • 8.8%
  • 9.8%

35. Large no of isotopes are known for the elements whose masses are multiple of one among the following:

  • Two
  • Four
  • Six
  • Eight

36. The least no of molecules is present in 30 g of:

  • N2O
  • NO
  • NO2
  • N2O3

37. How many atoms of carbon are present in 18 g of glucose C6H12O6:

  • 6.02 × 1022
  • 3.6 × 1023
  • 6.0 × 1023
  • 3.6 × 1024

38. The relative atomic mass of oxygen according to C 12.000 a.m.u standard is:

  • Less than 16
  • More than 16
  • 16 only
  • No relationship

39. An organic compound contains 2% of sulphur. The molar mass of compound is:

  • 200
  • 800
  • 1600
  • 3200

40. The mass of 0.5 mole of Aluminium is:

  • 13 g
  • 13.5 g
  • 14 g
  • 27 g

Leave a Comment