28. Activated complex is a substance which35. If the reactants are disappeared in moreisthan one hour, it means the reaction isa. Stablec. can be isolateda. Fasterc. very fastb. unstabled. can exist as productb. Slowerd. very slow29. With raise in temperature rate of reactionincreases due to36. Anthracene is an example ofa. Increase in collisiona. Homocyclic hydrocarbonsb. decrease in activated complexb. heterocyclic hydrocarbonsc. increase in kinetic energy of thec. polycyclic hydrocarbonsreactant moleculesd. PАHSd. more number of molecules attain37. Whichofthefollowingis/areenergy of activationheterocyclic organic compounds30. Activation energy depends uponа. Рyridinec. furana. Temperaturec. both a and bb. thiophened. allb. catalystd. none38. On the basis of functional group organic31. Energy of activation is expected to becompounds are classified asrequired more for one of the followinga. Hydrocarbonsa. Exothermic reactionb. derivatives of hydrocarbonsb. athermic reactionc. both a and bc. endothermic reactiond. alld. none32. If the rate of reaction is determined39. A series of organic compounds in whichform the change in concentration ofthe adjacent member is differ byreactants, then it is takenmethylene group (-CH2-) only is calleda. Positivec. botha. Isomerismc. functional groupsb. Negatived. noneb. homologous seriesd. all33. СО + NO2 — СО2 + NO40. Homologues have similarThe correct rate expression for the abovea. Chemical propertiesreaction will beb. similar method of preparationRate = d[CO]/dt c. Rate = -d[CO2/dtc. both a and bа.b. Rate = d[NO2]/dtd. noned. physical properties34. In the reaction is completed in one41. Which of the following is more ionicminute, it mean the rate isa. PbCl4c. SiCl4Fasterc. very fastb. P6C12d. CCl4а.b. Slowerd. very slow

The answer for question no.28 is given below. Kindly repost the other questions as separate one

Answered: 28. Activated complex is a substance…

28. Activated complex is a substance which is c. can be isolated d. can exist as product a. Stable b. unstable 20 With raise in temperature rate of reaction

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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list several attributes that are used to compare the “greenness” of a solvent and explain why catalyst are useful in making reaction greener
20
Consider the reaction profile shown in image. The activation energy of the reaction is represented by the difference in energy between points_________. a. A and D b. A and C c. B and C d. A and B
As the temperature is increased, which kinds of reactions become more product-favored? a. All reactions that result in an decrease in entropy. b. Only those that are exothermic and result in an decrease in entropy. c. Only those that are endothermic and result in an increase in entropy. d. Only those that are exothermic and result in an increase in entropy. e. All reactions that result in an increase in entropy.
4. Which of the following statements is false? A. Increasing the volume of the container will couse the reaction to shift to the left. B. Decreasing the volume of the container will cause the partial pressure of N2 to increase. C. Adding an inert gas such as Neon will couse the pressure in the container to increase. D. Decreasing the partial pressure of NO will cause the partial pressure of N2 to increase. E. The addition of a catalyst will speed up the reaction but will have no effect on the position of equilibrium.
Which statement is NOT correct? A. Activation energy is the same in the forward and reverse direction. B. The activated complex will be the highest on the reaction energy diagram. C. If the forward reaction is endothermic, the reverse reaction will be exothermic. D. In an endothermic reaction, the activation energy is usually greater than the change in enthalpy. E. An activated complex has higher energy than any molecule contributing to it.