NEET MCQs on Chemical bonding and molecular structure

NEET mcqs on Chemical bonding and molecular structure

NEET mcqs on Chemical bonding and molecular structure

Chemical bonding and molecular structure is an important chapter in Chemistry for the NEET exam. It carries a weightage of 15% from the Inorganic Chemistry section, which means that there is a high probability of at least one question from this chapter being asked in the exam.

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This chapter covers the basic concepts of chemical bonding, such as the different types of chemical bonds, the forces that hold atoms together, and the shapes of molecules. It is also important for understanding other topics in Chemistry, such as the properties of matter, the structure of solids, and the behavior of gases.

Here are some of the important topics in the Chemical bonding and molecular structure chapter that you should focus on for the NEET exam:

  • Types of chemical bonds: ionic, covalent, metallic, and hydrogen bonds
  • The forces that hold atoms together: electrostatic attraction, covalent attraction, and van der Waals forces
  • The shapes of molecules: linear, tetrahedral, trigonal planar, and bent
  • The properties of matter: melting point, boiling point, solubility, and conductivity
  • The structure of solids: ionic solids, covalent solids, and metallic solids
  • The behavior of gases: pressure, volume, temperature, and ideal gas law

You should also practice solving questions from previous year’s NEET papers to get a better understanding of the type of questions that are asked.

Here are some multiple-choice questions (MCQs) on chemical bonding and molecular structure for NEET (National Eligibility cum Entrance Test) preparation, along with their answers:

1. In a covalent bond, electrons are:
a) Transferred from one atom to another
b) Shared between two atoms
c) Completely lost by one atom
d) Completely gained by one atom

Answer: b) Shared between two atoms

2. Which of the following molecules has a linear shape?
a) Water (H2O)
b) Carbon dioxide (CO2)
c) Methane (CH4)
d) Ammonia (NH3)

Answer: b) Carbon dioxide (CO2)

3. What type of bond is formed between two chlorine atoms in Cl2?
a) Ionic bond
b) Covalent bond
c) Metallic bond
d) Hydrogen bond

Answer: b) Covalent bond

4. Which of the following molecules has a trigonal pyramidal shape?
a) Water (H2O)
b) Carbon dioxide (CO2)
c) Ammonia (NH3)
d) Methane (CH4)

Answer: c) Ammonia (NH3)

5. The bond angle in a water molecule (H2O) is approximately:
a) 90 degrees
b) 109.5 degrees
c) 120 degrees
d) 180 degrees

Answer: b) 109.5 degrees

6. Which of the following molecules has polar covalent bonds but is a nonpolar molecule?
a) CO2
b) H2O
c) NH3
d) CH4

Answer: a) CO2

7. What is the shape of a molecule with two bonded atoms and no lone pairs on the central atom?
a) Linear
b) Trigonal planar
c) Tetrahedral
d) Octahedral

Answer: a) Linear

8. Which of the following substances has the highest boiling point?
a) Methane (CH4)
b) Ethanol (C2H5OH)
c) Water (H2O)
d) Hydrogen chloride (HCl)

Answer: c) Water (H2O)

9. In which type of bond do electrons move freely between atoms within a metal lattice?
a) Covalent bond
b) Ionic bond
c) Metallic bond
d) Hydrogen bond

Answer: c) Metallic bond

10. What is the geometry of a molecule with four bonded atoms and one lone pair on the central atom?
a) Linear
b) Bent (V-shaped)
c) Tetrahedral
d) Trigonal pyramidal

Answer: d) Trigonal pyramidal

These questions should help you practice and prepare for the chemical bonding and molecular structure topic in the NEET examination.

JEE mcqs on Chemical bonding and molecular structure

Here are some multiple-choice questions (MCQs) on chemical bonding and molecular structure for JEE (Joint Entrance Examination) preparation, along with their answers:

1. Which type of bond is formed between two nonmetals in a molecule?
a) Ionic bond
b) Covalent bond
c) Metallic bond
d) Coordinate bond

Answer: b) Covalent bond

2. In a covalent bond, electrons are:
a) Transferred from one atom to another
b) Shared between two atoms
c) Lost by both atoms
d) Gained by both atoms

Answer: b) Shared between two atoms

3. What is the shape of a water molecule (H2O)?
a) Linear
b) Trigonal planar
c) Bent (V-shaped)
d) Tetrahedral

Answer: c) Bent (V-shaped)

4. Which of the following molecules has a trigonal pyramidal shape?
a) CH4
b) NH3
c) H2O
d) CO2

Answer: b) NH3

5. What is the bond angle in a methane (CH4) molecule?
a) 90 degrees
b) 109.5 degrees
c) 120 degrees
d) 180 degrees

Answer: b) 109.5 degrees

6. Which of the following molecules exhibits hydrogen bonding?
a) H2
b) N2
c) H2O
d) CO2

Answer: c) H2O

7. The concept of hybridization is used to explain:
a) The shape of molecules
b) The strength of ionic bonds
c) The formation of metallic bonds
d) The concept of valency

Answer: a) The shape of molecules

8. Which of the following compounds is polar?
a) CH4
b) CO2
c) H2O
d) O2

Answer: c) H2O

9. Which element is known for its ability to form multiple bonds with other elements?
a) Hydrogen (H)
b) Carbon (C)
c) Oxygen (O)
d) Nitrogen (N)

Answer: b) Carbon (C)

10. What type of bond is formed when two atoms share electrons, but the electrons are not shared equally?
a) Ionic bond
b) Covalent bond
c) Metallic bond
d) Polar covalent bond

Answer: d) Polar covalent bond

These questions should help you practice and prepare for the chemical bonding and molecular structure topic in the JEE examination.

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