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Previous Year Question on Chemical Kinetics
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Question 1
The arsenious sulphide sol has negative charge. The maximum coagulating power for precipitating is of:
Question 2
The instantaneous rate of disappearance of the MnO4– ion in the following reaction is 4.56 × 10–3 Ms–1.
2MnO4– + 10 I– + 16H+→ 2Mn2+ + 5I2 + 8H2O
The rate of appearance of I2 is -
2MnO4– + 10 I– + 16H+→ 2Mn2+ + 5I2 + 8H2O
The rate of appearance of I2 is -
Question 3
The arsenious sulphide sol has negative charge. The maximum coagulating power for precipitating is of:
Question 4
The amount of ice that will separate out on cooling a solution containing 50 g of ethylene glycol in 200 g water to –9.3 °C is
Question 5
The data given below is for the reaction of NO and Cl2 to form NOCl at 295 K
What is the rate law ?
What is the rate law ?
Question 6
Nitramide, O2NNH2, decomposes slowly in aqueous solution according to the following reaction
O2NNH2 N2O + H2O
The experimental rate law is
Which of the following step is not appropriate for the mechanism of above reaction ?
O2NNH2 N2O + H2O
The experimental rate law is
Which of the following step is not appropriate for the mechanism of above reaction ?
Question 7
Consider the reaction, 2A + B → Products
When concentration of B alone was doubled, the half-life did not change. When the concentration of A alone was doubled, the rate increased by two times. The unit of rate constant for this reaction is
When concentration of B alone was doubled, the half-life did not change. When the concentration of A alone was doubled, the rate increased by two times. The unit of rate constant for this reaction is
Question 8
The rate of a chemical reaction doubles for every 10 °C rise of temperature. If the temperature is raised by 50 °C, the rate of the reaction increases by about :
Question 9
For the non–stoichiometric reaction 2A + B C + D, the following kinetic data were obtained in three separate experiments, all at 298 K
The rate law for the formation of C is
The rate law for the formation of C is
Question 10
Higher order (>3) reactions are rare due to:
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Sep 23JEE & BITSAT