Download App

Chemical Kinetics — Chemistry STD 12 — Question

Tamilnadu BoardEnglish MediumSTD 12ChemistryChemical Kinetics1 Mark
MCQ
The correct difference between first and second order reactions is that
  • A
    A first order reaction can be catalysed; a second order reaction cannot be catalysed.
  • ✓
    The half life of a first order reaction does not depend on $[A_0]$; the half life of a second order reaction does depend on $[A_0].$
  • C
    The rate of a first order reaction does not depend on reactant concentrations; the rate of a second order reaction does depend on reactant concentrations.
  • D
    The rate of a first order reaction does depend on reactant concentrations; the rate of a second order reaction does not depend on reactant concentrations.
✓

Answer

Correct option: B.
The half life of a first order reaction does not depend on $[A_0]$; the half life of a second order reaction does depend on $[A_0].$
The half life of a first order reaction does not depend on $[A_0]$; the half life of a second order reaction does depend on $[A_0].$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "Choose the most appropriate answer from the given alternatives and write the option code and the corresponding answer." from Chemical Kinetics→Chemical Kinetics — all question types→Chemistry STD 12 question papers→Tamilnadu Board STD 12 question papers→Tamilnadu Board question paper generator→

Similar questions

Column I Column II
A. Vitamin $B _5$ 1. Hair loss
B. Vitamin $B_6$ 2. Megaloblastic anaemia
C. Vitamin $B _7$ 3. Inadequate growth
D. Vitamin $B_9$ 4. Convulsions
→
The number of moles of acidified KMnO4 required to oxidize 1 mole of ferrous oxalate ( FeC2O4 ) is ____________.
→
Which one of the following is formed when Diethyl ether is treated with dil.H2SO4?
→
Which one of the following is formed when diethyl ether reacts with Cl2 in the presence of light?
→
For a first order reaction
$
A \longrightarrow \text { Product }
$
with initial concentration $x mol L ^{-1}$, has a half life period of 2.5 hours. For the same reaction with initial concentration $\left(\frac{ x }{2}\right) mol L ^{-1}$ the half life is
→
Which one of the following is used as a hypnotic?
→
Column I Column II
A. Glucose 1. Disaccharide
B. Fructose 2. Polysaccharide
C. Sucrose 3. Keto hexose
D. Cellulose 4. Aldo hexose
→
Which of the following catalyse the chemical reaction in living organism?
→
Which one of the following is formed when cyano methane reacts with $LiAlH _4$ ?
→
Assertion(A): In all living systems, the biochemical reactions are catalysed by enzymes. This principle is applied to kill many pathogens.
Reason (R): The enzyme actions are highly essential for normal functioning of the system.
→