The molecularity of the elementary step Cl₂ + H₂ → 2HCl is:
Two molecules collide → molecularity = 2.
Ref: NCERT Class 12 Chemistry > Chapter 3: Chemical Kinetics > Topic: Temperature Dependence - Arrhenius Equation and Activation Energy
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The molecularity of the elementary step H₂ + 2ICl → 2HCl + I₂ is:
Three molecules collide → molecularity = 3.
Ref: NCERT Class 12 Chemistry > Chapter 3: Chemical Kinetics > Topic: Temperature Dependence - Arrhenius Equation and Activation Energy
The molecularity of the elementary step Cl₂ + CHCl₃ → HCl + CCl₄ is:
Two molecules collide → molecularity = 2.
Ref: NCERT Class 12 Chemistry > Chapter 3: Chemical Kinetics > Topic: Order and Molecularity and Units of Rate Constant
The molecularity of the elementary step NO + O₃ → NO₂ + O₂ is:
Two molecules collide → molecularity = 2.
Ref: NCERT Class 12 Chemistry > Chapter 3: Chemical Kinetics > Topic: Order and Molecularity and Units of Rate Constant
The molecularity of the reaction 2NO + O₂ → 2NO₂ is:
Three molecules (2NO + O₂) collide → molecularity = 3.
Ref: NCERT Class 12 Chemistry > Chapter 3: Chemical Kinetics > Topic: Order and Molecularity and Units of Rate Constant
The molecularity of the elementary step NO₂ + CO → NO + CO₂ is:
Two molecules collide → molecularity = 2.
Ref: NCERT Class 12 Chemistry > Chapter 3: Chemical Kinetics > Topic: Order and Molecularity and Units of Rate Constant
The molecularity of the elementary step N₂O₅ → N₂O₄ + ½O₂ is:
Molecularity is the number of molecules in an elementary step. One molecule of N₂O₅ decomposes → molecularity = 1.
Ref: NCERT Class 12 Chemistry > Chapter 3: Chemical Kinetics > Topic: Order and Molecularity and Units of Rate Constant
The molecularity of the elementary step H₂ + Br₂ → 2HBr is:
Two molecules collide → molecularity = 2.
Ref: NCERT Class 12 Chemistry > Chapter 3: Chemical Kinetics > Topic: Integrated Rate Equations - Zero Order Reactions
The molecularity of the elementary step O₃ → O₂ + O is:
One molecule decomposes → molecularity = 1.
Ref: NCERT Class 12 Chemistry > Chapter 3: Chemical Kinetics > Topic: Integrated Rate Equations - Zero Order Reactions
The molecularity of the elementary step 2NO + O₂ → 2NO₂ is:
Three molecules collide → molecularity = 3.
Ref: NCERT Class 12 Chemistry > Chapter 3: Chemical Kinetics > Topic: Collision Theory - Effective Collisions and Catalyst Effect