1 - The addition of a catalyst to the reaction system
Increases the rate of forward as well as backward reaction equally
2 - The specific rate constant of a first order reaction depends on the
Temperature
3 - On increasing the temperature the rate of reaction increases mainly because
Collision frequency increases
4 - The value of activation energy is primarily determined by
Effective collision
5 - Sum of exponents of molar concentration is called
Order of reaction
6 - Spontaneous reactions are
Fast
7 - In rate expression the concentration of reactants is negative. It shows
Concentration of reactant decreases
8 - Unit of rate of reaction is
Moles dm-3 sec-1
9 - When a graph is plotted between 1/T on X-axis and log k on y-axis a straight line is obtained with a negative slope which has two end in
II and IV quadrant
10 - Rate of disappearance of reactant is equal to
Rate of reaction
11 - Rate of reaction when concentration of reactants are taken as unity is called
Specific rate constant
12 - For 3rd order reaction the hhalf life is inversely proportional to initial concentration of reactants
Square
13 - Which order of reaction obeys the relation t1/2 = 1/Ka
Second order
14 - Radiations are absorbed in
Spectrophotometer method
15 - Activated complex is formed due to
Effective collision
16 - Energy of reactant higher than energy of product favours
Exothermic
17 - Energy required to form transition state is called
Ea
18 - Which of the following will have very high rate of reaction?
all of above
19 - Greater the conc. Of reactant
Greater will be dx/dt
20 - Anything which increases rate of reaction without being involved in the reaction
Catalyst
21 - The substances that reduces the effectiveness of a catalyst are called
Poisoning catalysts
22 - When catalysts and reactants are in more than one phase it is
Heterogeneous catalysis
23 - Each catalyst has
all of above
24 - Biocatalytical proteins are
Enzymes
25 - A catalyst can not effect
both a & b
26 - An enzyme has its specificity due to
Structure
27 - Co-enzymes are
Non proteineous
28 - A substance which increases the reactivity of enzyme is called
Promoters
29 - End name of enzyme is
ase
30 - When the reaction completes in more than one steps rate of reaction will be determined by
Slowest step
31 - For determining the order of reaction we use
Half life method
32 - Energy of activation for backward reaction is less than forward reaction for ________ reaction
Endothermic
33 - Which statement is incorrect about catalyst
it affects specific rate constant
34 - Elements in the same vertical group of the periodic table have same
Number of valence electrons
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