Related InterviewSolutions

• The unit of rate constant of a first-order reaction is s^-1.(a) True(b) FalseThis question was posed to me during an interview.The origin of the question is Chemical Kinetics in portion Chemical Kinetics of Chemistry – Class 12
• For the reaction A + H2O → products, find the rate of the reaction when [A] = 0.75 M, k= 0.02.(a) 0.077 s^-1(b) 0.085 s^-1(c) 0.015 s^-1(d) 0.026 s^-1The question was posed to me in semester exam.My doubt stems from Rate of a Chemical Reaction in chapter Chemical Kinetics of Chemistry – Class 12
• Effective collisions are those in which molecules must acquire the energy of activation.(a) True(b) FalseI had been asked this question in examination.I need to ask this question from Collision Theory of Chemical Reactions in portion Chemical Kinetics of Chemistry – Class 12
• The rate constant of a reaction is 0.01s^-1, how much time does it take for 2.4 mol L^-1 concentration of reactant reduced to 0.3 mol L^-1?(a) 108.3s^-1(b) 207.9s^-1(c) 248.2s^-1(d) 164.8s^-1I got this question in examination.Enquiry is from Chemical Kinetics in section Chemical Kinetics of Chemistry – Class 12
• What are the factors that determine an effective collision?(a) Translational collision and energy of activation(b) Threshold energy and proper orientation(c) Proper orientation and steric bulk of the molecule(d) Collision frequency, threshold energy and proper orientationThe question was posed to me by my college professor while I was bunking the class.I would like to ask this question from Collision Theory of Chemical Reactions in chapter Chemical Kinetics of Chemistry – Class 12
• What is the rate law of hydrolysis of CH3COOC2H5 in aqueous solution?(a) R=k [CH3COOC2H5]^2(b) R=k [CH3COOC2H5](c) R=k [CH3COOC2H5] [H2O](d) R=kk’ [CH3COOC2H5][H2O]This question was posed to me in an interview.This interesting question is from Chemical Kinetics in section Chemical Kinetics of Chemistry – Class 12
• What is the time required for 75 percent completion of a first-order reaction?(a) 3 × t50(b) 4 × t50(c) 4.5 × t50(d) 2 × t50This question was addressed to me in homework.This question is from Chemical Kinetics in division Chemical Kinetics of Chemistry – Class 12
• Which of the following is a factor that automobile engines use to increase the rate of its internal reactions?(a) Concentration of fuel(b) Viscosity of the fuel(c) Surface area of the reactants(d) Nature of the fuelI had been asked this question in an interview for internship.The query is from Chemical Kinetics in portion Chemical Kinetics of Chemistry – Class 12
• Which of the following will lead to an increase in the rate of the reaction?(a) Decrease in temperature(b) Decreasing concentration of reactants(c) Addition of catalyst(d) Addition of inhibitorI got this question in semester exam.My question comes from Chemical Kinetics topic in portion Chemical Kinetics of Chemistry – Class 12
• What is the concentration of the reactant in a first order reaction when the rate of the reaction is 0.6 s^-1 and the rate constant is 0.035?(a) 26.667 M(b) 17.143 M(c) 26.183 M(d) 17.667 MThis question was posed to me during an online exam.I would like to ask this question from Rate of a Chemical Reaction in division Chemical Kinetics of Chemistry – Class 12