Class 11 Chemistry MCQ Chapter 4 Chemical Bonding and Molecular Structure Solutions to each chapter is provided in the list so that you can easily browse through different chapters Class 11 Chemistry MCQ Chapter 4 Chemical Bonding and Molecular Structure Solutions and select need one. Class 11 Chemistry MCQ Chapter 4 Chemical Bonding and Molecular Structure Question Answers Download PDF. AHSEC Chemistry Multiple Choice Class 11 Solutions.
Class 11 Chemistry MCQ Chapter 4 Chemical Bonding and Molecular Structure
Also, you can read the NCERT book online in these sections Solutions by Expert Teachers as per Central Board of Secondary Education (CBSE) Book guidelines. HS 1st Year Chemistry Objective Type Solutions are part of All Subject Solutions. Here we have given NCERT Class 11 Chemistry Multiple Choice Question and Answer, NCERT Class 11 Chemistry Objective Type Solutions for All Chapters, You can practice these here.
Chemical Bonding and Molecular Structure
Chapter: 4
| MCQ |
1. What is the stable electronic arrangement that Lewis postulated for atoms?
(i) Duplet.
(ii) Quartet.
(iii) Octet.
(iv) Decet.
Ans: (iii) Octet.
2. What type of bond is formed in molecules like Cl₂, H₂, and F₂?
(i) Ionic bond.
(ii) Metallic bond.
(iii) Covalent bond.
(iv) Hydrogen bond.
Ans: (iii) Covalent bond.
3. The bond length between hybridised carbon atom and other carbon atom is minimum in
(i) Butane.
(ii) Propane.
(iii) Propene.
(iv) Propyne.
Ans: (iv)Propyne.
4. Which of the following elements is NOT a part of the second period?
(i) Lithium.
(ii) Beryllium.
(iii) Boron.
(iv) Sodium.
Ans: (iv) Sodium.
5. The hybrid state of sulphur in SO2 molecule is :
(i) sp²
(ii) sp³
(iii) sp
(iv) sp³d
Ans: (i) sp²
6. In PO formal charge on 4 the oxygen atom of P-O bond is:
(i) +1
(ii) -1
(iii) -0.75
(iv) +0.75
Ans. (ii) -1.
7. In NO3– ion, the number of bond pairs and lone pairs of electrons on nitrogen atom are:
(i) 2,2
(ii) 3,1
(iii) 1,3
(iv) 4,0
Ans. (iii) 1,3
8. Which of the following species has tetrahedral geometry?
(i) B H4–
(ii) N H2–
(iii) CO32-
(iv) H3O+
Ans. (i) BH4–
9. Which one of the following does not have sp² hybridised carbon?
(i) Acetone.
(ii) Acetic acid.
(iii) Acetonitrile.
(iv) Acetamide.
Ans: (iii) Acetonitrile.
10. The bond formed as a result of the electrostatic attraction between the positive and negative ions is termed as …
(i) Chemical bond.
(ii) Covalent bond.
(iii) Electrovalent bond.
(iv) Co-ordinate bond.
Ans: (i) Chemical bond.
11. Isostructural species are those which have the same shape and hybridis ation. Among the given species identify the isostructural pairs.
(i) [NF, and BF3]
(ii) [ BF4 – and NH4+]
(iii) [BC1, and BrCl3]
(iv) [NH3 and NO4+]
Ans: (ii) [ BF4 – and NH4+]
12. Electrovalence of calcium and chlorine respectively is
(i) + 2, – 1
(ii) 1, – 2
(iii) + 1, – 1
(iv) + 2, – 2
Ans: + 2, – 1
13. Polarity in a molecule and hence the dipole moment depends pri- marily on electronegativity of the constituent atoms and shape of a molecule. Which of the following has the highest dipole moment?
(i) CO2
(ii) HI
(iii) H2O
(iv) SO2
Ans. (iii) H2O.
14. Which of the following is an example of an atom achieving an octet by sharing electrons?
(i) NaCl formation.
(ii) H₂O formation.
(iii) Formation of Na+.
(iv) Formation of Ca2.+
Ans: (ii) H₂O formation.
15. The bond dissociation enthalpy of H₂ is 435.8 kJ mol⁻¹. What is the bond length of H₂?
(i) 74 pm.
(ii) 144 pm.
(iii) 100 pm.
(iv) 200 pm.
Ans: (i) 74 pm.
