CBSE Class 11 Chemistry Chemical Bonding MCQs

CBSE Class 11 Chemistry Chemical Bonding MCQs. CBSE and NCERT students can refer to the attached file. All educational material on the website has been prepared by the best teachers having more than 20 years of teaching experience in various schools. The study material available on our website for all CBSE classes and subjects have been prepared by teachers from all over the country. All study material has been carefully designed keeping into mind the latest CBSE examination trends.  

 

I. MCQ - Choose Appropriate Alternative

1. The energy required to break a chemical bond to form neutral atoms is called __________. (Ionization Potential, Electron Affinity, Bond Energy)

2. The chemical bond present in H-Cl is __________. (Non Polar, Polar Covalent, Electrovalent)

3. A polar covalent bond is formed between two atoms when the difference between their E.N values is __________. (Equal to 1.7, less than 1.7, More than 1.7)

4. The most polar covalent bond out of the following is __________. (H-Cl, H-F, H-I)

5. __________ bond is one in which an electron has been completely transferred from one atom to another. (Ionic, Covalent, co-ordinate)

6. __________ bond is one in which an electron pair is shared equally between the two atoms. (Ionic, Covalent, Co-ordinate)

7. Bond angle in the molecule of CH4 is of __________. (120°, 109.5°, 180°) 

8. A molecule of CO2 has __________ structure.

9. The sigma bond is __________ than pi bond. (Weaker, Stronger, Unstable)

10. The sp3 orbitals are __________ in shape(Tetrahedral, Trigonal, Diagonal)

11. The shape of CH4 molecule is __________. (Tetrahedral, Trigonal, Diagonal)

12. The bond in Cl2 is __________. (Non polar, Polar, Electrovalent)

13. Water is __________ molecule. (None polar, Polar, Electrovalent)

14. Covalent bonds in which electron pair are shared equally between the two atoms is called __________ covalent bond. (Non polar, Polar, Co-ordinate)

15. Each carbon atom in CH4 is __________ hybridized. (sp3, sp2, sp)

16. Each carbon atom in C2H4 is __________ hybridized. (sp3, sp2, sp)

17. Each carbon atom in C2H2 is __________ hybridized. (sp3, sp2, sp)

18. Oxygen atom in H2O has __________ unshared electron pair. (One, two , three)

19. Nitrogen atom in NH3 has __________ unshared electron pair. (One, two, three)

20. The cloud of charge that surrounds two or more nuclei is called __________ orbital. (Atomic, Molecular, Hybrid)

21. A substance, which is highly attracted by a magnetic field, is called __________. (Electromagnetic, Paramagnetic, Diamagnetic)

22. HF exists in liquid due to __________. (Vander Waal Forces, Hydrogen bond, covalent Bond)

23. Best hydrogen bonding is found in __________ (HF, HCl, HI)

24. Shape of CCl4 molecule is __________. (tetrahedral, Trigonal, Diagonal)

25. __________ bond is formed due to linear overlap.(Sigma bond, Pi bond, Hydrogen bond)

26. __________ is defined as the quantity of energy required to break one mole of covalent in gaseous state.(Bond energy, Ionization energy, Energy of Activation)

27. Repulsive force between electron pair in a molecule is maximum when it has an angle of __________.(120°, 109.5°, 180°)

28. Repulsive force between electron pair in a molecule is maximum when it has an angle of __________.(120°, 109.5°, 180°)

29. The sum of total number of electrons pairs (bonding and lone pairs) is called __________.(Atomic Number, Avogadro’s Number, Steric Number)

30. Shape of __________ molecule is tetrahedral.(BaCl2, BF3, NH3)

 

II. Fill in the Blank

1. A bond formed due to transference of electron is called __________.

2. A bond formed due to sharing of electron is called __________.

3. Sigma bond is __________ than pi bond.

4. The shape of methane molecule is __________.

5. One s and 3p orbitals overlap to produce four __________ hybrid orbitals.

6. Ethene, C2H4 is an example of __________ hybridization.

7. Water molecule has __________ structure.

8. Water molecules are inter-linked with one another due to __________.

9. Polarity of the molecule is due to the difference of __________ between the two bonded atoms.

10. A chemical bond formed between to different atoms by mutual sharing of electron is termed as __________.

11. A chemical bond formed between two similar atoms by mutual sharing of electrons is known as __________.

12. The difference between the Electronegativity values of the two atoms forming covalent bond must be __________ than 1.7.

13. When two orbitals of different atoms by hybridize with each other having their axes in the same straight lines, the bond formed is termed as __________.

14. __________ bond is formed when p-orbitals of the two atoms with their axes parallel to each other overlap with each other.

15. Melting and boiling point of ionic compounds are usually __________ than that of covalent compounds.

16. Non polar compounds are usually __________ in non polar solvent.

17. The nitrogen in NH3 is __________ hybridized.

18. A hybrid orbital is called __________ orbital.

19. Since dipole moment of CS2 is zero, it is a __________ molecule.

20. A bond formed due to the electrostatic forces of attraction between the oppositely charged ions is called __________ bond.

21. The ionic bond is formed between the atoms with low ionization potential and high __________.

22. A bond formed by the sharing of an electron pair contributed by one atom only is called a __________ bond.

23. A co-ordinate covalent bond is also known as __________ bond.

24. Polar covalent bond is __________ than a non polar covalent bond.

25. H-F bond is __________ than H-Br bond.

26. The SI unit of dipole moment is __________.

27. Commonly used unit of dipole moment is __________.

28. Dipole moment of non-polar compound is __________ D.

29. The reactions of ionic compounds are usually very __________.

30. Covalent compounds are generally __________ in nature.

31. Ionic compounds are generally __________ in nature.

32. A covalent bond is represented by a __________.

33. A co-ordinate covalent bond is represented by an __________.

34. The covalent bond between H-F is called __________ covalent bond.

35. The power of an atom to attract a shared pair of electron itself is called __________ of that atom.

36. m = d x e represents __________.

37. CO2 and SO2 molecules have __________ polar bonds.

38. NH3 molecule has __________ polar bonds.

39. A double bond has __________ bond energy than a single bond.

40. An orbital which surrounds a single nucleus is called __________ orbital.

41. An orbital which surrounds two or more atomic nuclei is called __________ orbital.

42. A molecular orbital, which is of lower energy than the atomic orbitals from which it is derived, is known as __________ orbital.

43. A molecular orbital, which has higher energy than the atomic orbitals from which it is derived, is known as __________ orbital.

44. Orbitals formed after hybridization are called __________ orbitals.

45. Bond angle in sp3 hybridization is of __________.

46. Bond angle in sp2 hybridization is of __________.

47. Bond angle in sp hybridization is of __________.

48. sp3 hybridization is also known as __________.

49. sp2 hybridization is also known as __________.

50. Sp hybridization is also known as __________.

51. A pair of electrons residing on the central atom and which is not used in bonding is called a __________.

52. The sum of total number of electron pairs (bonding and lone pairs) is called __________ number.

53. __________ bond is usually expressed by dotted line.

54. Water molecule has dipole moment because of its __________ structure.

55. CO2 is non polar because of its __________ structure.

56. Overlapping in __________ bond is perfect.

57. Overlapping in __________ bond is not perfect.

58. H-H bond is __________ than H-Cl bond.

59. __________ hybrid orbitals are not co-planar.

60. Covalent bond in Cl2 molecule is __________.

Tags: 

 


Click to View or Download pdf file
Click for more Chemistry Study Material

Latest NCERT & CBSE News

Read the latest news and announcements from NCERT and CBSE below. Important updates relating to your studies which will help you to keep yourself updated with latest happenings in school level education. Keep yourself updated with all latest news and also read articles from teachers which will help you to improve your studies, increase motivation level and promote faster learning

CBSE Online Training for Teachers 2020

It is clear that this pandemic has utterly disrupted an education system that many assert was already losing its relevance. Enhancing professional development digitally is a need in the times of COVID-19, where social distancing and remote interactions is the new...

Re verification of Class 12 Board Exams Marks

Modalities and Schedule for Senior Secondary School (Class XII) Examinations, 2020 in the subjects whose examinations have been conducted by CBSE for the processes of (I) Verification of Marks (II) Obtaining Photocopy of the Evaluated Answer Book(s) (Ill) Re-evaluation...

Board Cancelled Official CBSE Statement

Keeping in view the requests received from various State Governments and the changed circumstances as on date, following has been decided- 1. Examinations for classes X and XII which were scheduled from 1st July to 15th, 2020 stand cancelled. 2. Assessment of the...

Re verification of Class 10 Board Exams Marks

Modalities and Schedule for Secondary School (Class X) Examinations, 2020 in the subjects whose examinations have been conducted by CBSE for the processes of (I) Verification of Marks (II) Obtaining Photocopy of the Evaluated Answer Book(s) (Ill) Re-evaluation of Marks...

Board Exams Class 10 and 12 Notification by CBSE

Because of the prevailing condition of spread of COVID-19 pandemic in the country, special efforts are required for conducting examinations in a safe manner. As a number of students have shifted from the district of their school to some other district in the country,...

×
Studies Today