Trying to find the right answer to this..

(i) Hydrolysis of ester increases with time due to auto catalytic action of CH 3 COOH formed. (ii) Decolorisation of KMnO 4 by oxalic acid becomes fast due to auto catalytic action of Mn 2+ .

Previous Year Papers

Download Solved Question Papers Free for Offline Practice and view Solutions Online.

Test Series

Take Zigya Full and Sectional Test Series. Time it out for real assessment and get your results instantly.

Test Yourself

Practice and master your preparation for a specific topic or chapter. Check you scores at the end of the test.

Chemical Kinetics

Short Answer Type

71. How is the value of rate constant (k) depends on concentration of reactants and temperature?

135 Views

72. According to Arrhenius hypothesis, rate of reaction increases with increase in temperature. Give reasons.

259 Views

73. What is the usefulness of Initial Rate Method?

165 Views

74. What will be the shape of the curve if concentration of the reactant is plotted against time for a zero order reaction?

165 Views

75. Name one method which can be used to study fast reactions experimentally.

151 Views

76. Predict the value of rate constant k if temperature approaches to ∝ Is the value physically reasonable?

118 Views

77. Name the reaction order whose rate does not fall with the progress of the reaction?

140 Views

78. Give two examples of a reaction whose rate increases with the progress of the reaction.

(i) Hydrolysis of ester increases with time due to auto catalytic action of CH₃ COOH formed.

(ii) Decolorisation of KMnO₄ by oxalic acid becomes fast due to auto catalytic action of Mn²⁺.

112 Views

79. If Co is the initial concentration of the reactant following first order reaction and C_nis the concentration left after n halves, what is the relationship between Co and C_n?

103 Views

80. How much the rate of a reaction change when temperature is raised by 10°?

123 Views