JEE-Main - Grade 12 - Chemistry - Chemical Kinetics - Study ref# 9753
Match the graph given in column I with
the order of reaction given in column II. More than one item in Column I may
link to the same item of column II.
read moreJEE-Main - Grade 12 - Chemistry - Chemical Kinetics - Study ref# 9754Which of the following statements is not
correct about order of a reaction?
(a) The order of a reaction can be
fractional number
(b) Order of a reaction is experimentally
determined quantity
(c) The order of a reaction is always is... read moreJEE-Main - Grade 12 - Chemistry - Chemical Kinetics - Study ref# 9755Compounds ‘A’ and ‘B’ react according to
the following chemical equation.
A(g) +2B(g) 2C(g)
Concentration of either ‘A’ and ‘B’ were
changed keeping the concentrations of one of the reactants constant and rate... read moreJEE-Main - Grade 12 - Chemistry - Chemical Kinetics - Study ref# 9756For a complex reaction………. .
(a) Order of overall reaction is same as
molecularity of the slowest step
(b) Order of overall reaction is less
than the molecularity of the slowest step.
(c) Order of overall reaction is gre... read moreJEE-Main - Grade 12 - Chemistry - Chemical Kinetics - Study ref# 9757According to Maxwell, Boltzmann
distribution of energy, ………. .
(a) the fraction of molecules with most
probable kinetic energy decreases at higher temperatures
(b) the fraction of molecules with most
probable kinetic en... read moreJEE-Main - Grade 12 - Chemistry - Chemical Kinetics - Study ref# 9758Which of the following graph is correct
for a zero order reaction?
Hint: This problem includes graphical
representation of zero order reaction. To solve this problem.
(i) Write rate equation of zero order
reaction.
... read moreJEE-Main - Grade 12 - Chemistry - Chemical Kinetics - Study ref# 9759State a condition under which a
bimolecular reaction is kinetically first order reaction. Answer: Presence of one of the reactants in
excess, as in such a condition, its concentration remains constant and rate
of such depends upon concentrat... read moreJEE-Main - Grade 12 - Chemistry - Chemical Kinetics - Study ref# 9760How can you determine the rate law of the
following reaction?
Answer: We can determine the rate of this
reaction as a function of initial concentrations either by concentration of
one of the reactants constan... read moreJEE-Main - Grade 12 - Chemistry - Chemical Kinetics - Study ref# 9761For a zero order reaction will the
molecularity be equal to zero? Explain. Answer: No, the molecularity can never be zero or
a fractional number as it shows the number of reactants taking part in a
reaction which can never be zero.... read moreJEE-Main - Grade 12 - Chemistry - Chemical Kinetics - Study ref# 9762For a general reaction A B, plot of
concentration of A vs time is given in figure. Answer the following questions
on the basis of this graph.
(i) What is the order of the reaction?
(ii) What is the slope of the curve?
(iii) What are th... read moreJEE-Main - Grade 12 - Chemistry - Chemical Kinetics - Study ref# 9763Why does the rate of a reaction increase with
rise in temperature? Answer: At higher temperatures, larger fraction
of colliding particles can cross the energy barrier (i.e., the activation
energy) which leads to faster rate. ... read moreJEE-Main - Grade 12 - Chemistry - Chemical Kinetics - Study ref# 9764Oxygen is available in plenty in air yet
fuels do not burn by themselves at room temperature. Explain. Answer: For combustion reactions, activation
energy of fuels is very high at room temperature. So, fuels do not burn by
themselves at room... read moreJEE-Main - Grade 12 - Chemistry - Chemical Kinetics - Study ref# 9765Why in the redox titration of KMnO4
vs oxalic acid, we heat oxalic acid solution before starting the titration? Answer: As we know with increase in temperature
rate of reaction increases. Hence, we heat oxalic acid solution before
starting o... read moreJEE-Main - Grade 12 - Chemistry - Chemical Kinetics - Study ref# 9766Why can’t molecularity of any reaction be
equal to zero? Answer: Molecularity of the reaction is the
number of molecules taking part in an elementary step. For this we require at
least a single molecule leading to the value of minimum molec... read moreJEE-Main - Grade 12 - Chemistry - Chemical Kinetics - Study ref# 9767Match the items of column I and column
II.
Column I
| read moreJEE-Main - Grade 12 - Chemistry - Chemical Kinetics - Study ref# 9768In the
following question, a statement of assertion is followed by a statement of
reason.
Assertion: (A)
order and molecularity are same.
Reason: (R) Order is determined
experimentally and molecularity is t... read more
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