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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

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
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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28. Activated complex is a substance which 35. If the reactants are disappeared in more is than one hour, it means the reaction is a. Stable c. can be isolated a. Faster c. very fast b. unstable d. can exist as product b. Slower d. very slow 29. With raise in temperature rate of reaction increases due to 36. Anthracene is an example of a. Increase in collision a. Homocyclic hydrocarbons b. decrease in activated complex b. heterocyclic hydrocarbons c. increase in kinetic energy of the c. polycyclic hydrocarbons reactant molecules d. PАHS d. more number of molecules attain 37. Which of the following is/are energy of activation heterocyclic organic compounds 30. Activation energy depends upon а. Рyridine c. furan a. Temperature c. both a and b b. thiophene d. all b. catalyst d. none 38. On the basis of functional group organic 31. Energy of activation is expected to be compounds are classified as required more for one of the following a. Hydrocarbons a. Exothermic reaction b. derivatives of hydrocarbons b. athermic reaction c. both a and b c. endothermic reaction d. all d. none 32. If the rate of reaction is determined 39. A series of organic compounds in which form the change in concentration of the adjacent member is differ by reactants, then it is taken methylene group (-CH2-) only is called a. Positive c. both a. Isomerism c. functional groups b. Negative d. none b. homologous series d. all 33. СО + NO2 — СО2 + NO 40. Homologues have similar The correct rate expression for the above a. Chemical properties reaction will be b. similar method of preparation Rate = d[CO]/dt c. Rate = -d[CO2/dt c. both a and b а. b. Rate = d[NO2]/dt d. none d. physical properties 34. In the reaction is completed in one 41. Which of the following is more ionic minute, it mean the rate is a. PbCl4 c. SiCl4 Faster c. very fast b. P6C12 d. CCl4 а. b. Slower d. very slow
Transcribed Image Text:28. Activated complex is a substance which 35. If the reactants are disappeared in more is than one hour, it means the reaction is a. Stable c. can be isolated a. Faster c. very fast b. unstable d. can exist as product b. Slower d. very slow 29. With raise in temperature rate of reaction increases due to 36. Anthracene is an example of a. Increase in collision a. Homocyclic hydrocarbons b. decrease in activated complex b. heterocyclic hydrocarbons c. increase in kinetic energy of the c. polycyclic hydrocarbons reactant molecules d. PАHS d. more number of molecules attain 37. Which of the following is/are energy of activation heterocyclic organic compounds 30. Activation energy depends upon а. Рyridine c. furan a. Temperature c. both a and b b. thiophene d. all b. catalyst d. none 38. On the basis of functional group organic 31. Energy of activation is expected to be compounds are classified as required more for one of the following a. Hydrocarbons a. Exothermic reaction b. derivatives of hydrocarbons b. athermic reaction c. both a and b c. endothermic reaction d. all d. none 32. If the rate of reaction is determined 39. A series of organic compounds in which form the change in concentration of the adjacent member is differ by reactants, then it is taken methylene group (-CH2-) only is called a. Positive c. both a. Isomerism c. functional groups b. Negative d. none b. homologous series d. all 33. СО + NO2 — СО2 + NO 40. Homologues have similar The correct rate expression for the above a. Chemical properties reaction will be b. similar method of preparation Rate = d[CO]/dt c. Rate = -d[CO2/dt c. both a and b а. b. Rate = d[NO2]/dt d. none d. physical properties 34. In the reaction is completed in one 41. Which of the following is more ionic minute, it mean the rate is a. PbCl4 c. SiCl4 Faster c. very fast b. P6C12 d. CCl4 а. b. Slower d. very slow
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