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AMOLKACHAND MAHAVIDYALAYA, DEPARTMENT OF CHEMISTRY YAVATMAL, , M.Sc. (Part-I) Semester-I Examination, PHYSICAL CHEMISTRY, (Chemistry, Unit-All), , QUESTION PAPER, Note: Solve, Q.1 Nuclear fission reactions are of, a) Three types, b) Four types, c) Two types, d) Five types, Answer: A, Q.2 We are getting continuous sunlight is due to, (a) Nuclear fission reaction, b) Nuclear fusion reaction, c) Photo fission reaction, d) Induced fission reaction, Answer: B, Q.3 construction of atom bomb is based on, (a) Nuclear fission reaction, b) Nuclear fusion reaction, c) Photo fission reaction, d) Induced fission reaction, Answer: A, Q.4 Which of the following is a best example of Nuclear fuel, (a) U235, b) Pu239, c) Thorium, d) all of the above, Answer: D, Q.5 which of the following is a component nuclear power reactor, (a) Nuclear fuel, b) Moderator, c) control rods, d) coolant, e) All of the above, Answer: E, Q.6 which of the following is Characteristics of radioactive decay, (a) Nuclear phenomenon, b) Nucleolus of atom unstable, c) Unstable Nucleolus disintegrated, , Chemistry, Semester-I, M.Sc-Chemistry Part-I, , Page 1

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AMOLKACHAND MAHAVIDYALAYA, DEPARTMENT OF CHEMISTRY YAVATMAL, , d) All of the above, Answer: D, Q7.The concept of matter wave was suggested by_________, (a) Heisenberg, (b) de Broglie, (c ) Schrodinger, (d) Laplace, Answer: B, Q8.The intensity of the diffraction pattern is proportional to ______ of the wave function, (a) forth power, (b) cube, (c) sixth power, (d) square, Answer: D, Q9.The function representing matter waves must be ________, (a) complex, (b) real, (c) zero, (d) infinity, Answer: A, Q10.The total probability of finding the particle in space must be __________, (a) zero, (b) unity, (c) infinity, (d) double, Answer: B, Q11.The normalized wave function must have ________ norm, (a) infinite, (b) zero, (c) finite, (d) complex, Answer: C, Q12.The Non-normalized wave function must have ________ norm, (a) infinite, (b) zero, (c ) finite, (d) complex, Answer: A, Q.13.A catalyst _______, a) Increase the average Kinetic energy of reacting molecule, b) Increase the attraction energy, c) Alters the reaction mechanism, d) Increase the frequency of collisions of reacting species, Answer: D, Q.14 Chemical kinetics deals with _____, , Chemistry, Semester-I, M.Sc-Chemistry Part-I, , Page 2

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AMOLKACHAND MAHAVIDYALAYA, DEPARTMENT OF CHEMISTRY YAVATMAL, , a) Speed of the reaction, b) Mechanism of the reaction, c) Both a & b, d) None, Answer: C, Q15.If the concentration is expressed in moles per liter the unit of, The rate constant for a first order reaction is _____, a) Mole dm-3 sec-1, b) Mole dm-3, c) Sec-1, d) Mole-1, Answer: C, Q16.Which does not influence the rate of reaction?, a) Pressure, b) concentration of reactant, c) Temperature, d) Molecularity, answer D, Q17.The rate of chemical reaction is directly proportional to _____, a) Pressure, b) volume, c) Force, d) concentration of the reactant, Answer: D, Q18.Order of reaction is ____, a) Equal to the sum of the concentration terms the stoichiometric equation, b) Equal to the sum of the concentration terms in the rate equation, c) Always equal to the sum of the powers of the concentration terms in the rate equation, d) Equal to the sum of the number of molecules of reactants in a balanced chemical, equation, Answer: C, Q19.The change in internal energy of a system depends on, a) Initial and final state of a system, b) weather the path is reversible, c) weather the path is irreversible, d) none of the above, Answer: A, Q 20. Internal energy of an ideal gas depends only on, a) volume, b) Temperature, c) Pressure, d) b and c, Answer: D, Q21.A gas expands isothermally and reversibly the work done by the gas is ___, a) zero, b) maximum, , Chemistry, Semester-I, M.Sc-Chemistry Part-I, , Page 3

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AMOLKACHAND MAHAVIDYALAYA, DEPARTMENT OF CHEMISTRY YAVATMAL, , c) minimum, d) cannot be determined, Answer: B, Q22 If refrigerator’s door is kept open, then, a) room will be cooled, b) room will be heated, c) may get cooled or heated depending on weather, d) no effect on room, Answer: B, Q23.When a gas is subjected to adiabatic expansion, it gets cooled due to _____, a) fall in temperature, b) loss in kinetic energy, c) decrease in velocity, d) energy spent in doing work, Answer: D, Q24.A process in which not heat change takes place is called as ____, a) an isothermal process, b) an adiabatic process, c) an isobaric process, d) an isochoric process, Answer: B, Q25.The absolute value of which of the following can be determined, a) The internal energy, b) The enthalpy, c) Free energy, d) Entropy, Answer: D, Q26.In Freundlich Adsorption isotherm, the value of 1/n is, a)1 in case of physical adsorption, b) 1 in case of chemisorptions, c) Between 0 and 1 in all cases, d) Between 2 and 4 in all cases, Answer: C, Q27.Which one of the following statement is incorrect about enzyme catalysis, a) Enzymes are least reactive at optimum temperature, b) Enzymes are denaturated by ultraviolet rays and at high temperature, c) Enzymes are mostly proteinous in nature, d)Enzyme action is specific, Answer-A, Q28.The protecting power of lyophilic colloidal sol is expressed in terms of--a) Critical miscelle concentration, b) Oxidation number, c) Coagulation value, d)Gold number, Answer-D, Q29.Which one of the following does not involve coagulation?, , Chemistry, Semester-I, M.Sc-Chemistry Part-I, , Page 4

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AMOLKACHAND MAHAVIDYALAYA, DEPARTMENT OF CHEMISTRY YAVATMAL, , a) Peptization, b) Formation of delta regions, c) Treatment of drinking water by potash alum, d) Clotting of blood by the use of ferric chloride, Answer-A, Q30.Rate of physical adsorption increase with, a) increase in temperature, b) decrease in pressure, c) decrease in temperature, d)decrease in surface area, Answer-C, Q31.A plot of log x/m versus log p for the adsorption of a gas on a solid gives a straight line with, slope equal to, a) log K, b) - log K, c) n, d) i/n, Answer-D, Q.32 In Nuclear fission reactions---a) Splitting of Nucleolus takes place, b) Splitting of Atom takes place, c) Combining of atom, d) Fusing of nucleolus, Answer: A, Q.33 The continuous source of sunlight is due to, (a) Nuclear fission reaction, b) Nuclear fusion reaction, c) Photo fission reaction, d) Induced fission reaction, Answer: B, Q.34 Nuclear fission reaction principle is used in the construction of ---(a) Atom bomb, b) hydrogen bomb, c) Both, d) None, Answer: A, Q.35 Which of the following is Not a best example of Nuclear fuel, (a) U238, b) Pu239, c) Thorium, d) all of the above, Answer: A, Q.36 which of the following is not a component nuclear power reactor, (a) Nuclear fuel, b) Moderator, c) control rods, , Chemistry, Semester-I, M.Sc-Chemistry Part-I, , Page 5

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AMOLKACHAND MAHAVIDYALAYA, DEPARTMENT OF CHEMISTRY YAVATMAL, , d) Condenser, Answer: D, Q.37 which of the following is Not a Characteristic of radioactive decay, (a) Nuclear phenomenon, b) Nucleolus of atom unstable, c) Unstable Nucleolus disintegrated, d) none, Answer: D, Q38.The concept of matter wave was Not suggested by_________, a) Heisenberg, b) de Broglie, c) Schrodinger, d)A & C, Answer: D, Q39.The intensity of the diffraction pattern is Not proportional to ______ of the wave function, (a) forth power, (b) cube, (c) A& C, (d) square, Answer: C, Q40.The function representing matter waves must be ________, a) complex, (b) real, (c) zero, (d) infinity, Answer: A, , *****BEST OF LUCK ******, 8888888888888888888888THE END8888888888888888888888, , Chemistry, Semester-I, M.Sc-Chemistry Part-I, , Page 6