3. 01 Problem Which of the following statements(s) is (are)correct when a mixture of is gently warmed with conc. ? A deep red vapour is evolved The vapour when passed into solution gives a yellow solution of Chlorine gas is evolved chromyl vhloride is formed
4. Problem 02 Highly pure dilute solution of sodium in liquid ammonia shows blue colour exhibits electrical conductivity productes sodium amide produces hydrogen gas
5. Problem 03 The reaction of with HBR gives CH3CHBr Ch2 OH CH3CH2CHBr OH CH3CHBrCH2 Br CH3CH2CHBr Br
6. Problem 04 Chloroaniline and anilinium hydrochloride can be distinguished by Sandmeyer reaction Carbylamine test
7. Problem 05 The energy of an electron in the first Bhor orbit of H atom is -13.6eV.The possible energy value(s) of the excited state (s) for electrons in Bohr orbits of hydrogen is (are) -3.4eV -4.2eV -6.8eV +6.8eV
8. Problem 06 In nitroprusside ion the iron and No exist as rather and NO.these forms can be differentiated by estimating the concentration of iron measuring the concentration of CN measuring the soild state magnetic moment thermally decomposing the compound
9. Problem 07 Which of the following statement (s) is (are) correct? The coordination number of each type of ion in CsCl crystal is 8. A metal that crystallizes in bcc structure has a coordination number of 12 A unit cell of an ionic crystal shares some of its ions with other unit cells. The length of the unit cell in is 552 pm.
11. Problem 09 Which of the following statements(s) is(are)correct with reference to the ferrous and ferric ions? gives brown colour with potassium ferricyanide. gives blue precipite with potassium ferricyanide gives red colurwith potassium thiocyanate. gives brown colur with ammonium thiocyanate.
12. Problem 10 Which of the following statement(s) is (are) correct ? The electronic configuration of (Atomic number of Cr=24) The magnetic quantum number may have a negative value. In silver atom,23 electrons have a spin of one type and 24 of the opposite type.(Atomic Number of Ag=47.) The oxidation state of nitrogen in is-3
13. Problem 11 A new carbon-carbon bond formation is possible in Cannizzaro reaction Friedel-Crafts alkylation Clemmensen reduction Reimer-Tiemann reaction
14. 12 Problem White phosphorus has sixP-P single bonds four P-P single bonds four lone pairs of electrons PPP angle of
15. Problem 13 Which of the following will react with water ? a. b. c. d.
16. Problem 14 The standard reduction potential values of three metallic captions, X,Y,Z are 0.52,-3.03 and -1.18 V respectively. The order of reducing power of the corresponding metals is Y > Z > X X > Y > Z Z > Y > X Z > X > Y
17. Problem 15 Among the following compounds, which will react with acetone to give a product containing ? a. b. c. d.
18. Problem 16 Which of the following compounds will show geometrical isomerism? 2-butene propane 1-phenylpropene 2-methyl-2-butene
19. 17 Problem The geometry and the type of hybird orbital present about the central atom in is linear,sp trigonal planar, tetrahedral, pyramidal,
20. Problem 18 Benzyl choride (C6H5C2HCI) can be prepared from toluene by chlorination with SO2CI2 SOCI2 CI2 NaOCI
21. Problem 19 Which of the following will undergo aldol condensation? acetaldehyde propanaldehyde benzaldehyde trideuteroacetaldehyde
22. Problem 20 Addition of high proportions of manganese makes steel useful in making rails of railroads, because manganese gives hardness to steel helps the formation of oxides of iron can remove oxygen and sculpture can show highest oxidation state of +7
23. Problem 21 Decrease in atomic number is observed during alpha emission beta emission positron emission electron capture
24. Problem 22 Benzendiazonium chloride on reaction with phenol in weakly basic medium gives diphenyl ether p-hydroxyazobenzene chlorobenzene benzene
25. Problem 23 Among the following compounds, the strongest acid is a. b. c. d.
26. Problem 24 For a first order reaction, the degree of dissociation is equal to a polt of reciprocal concentration of the reactant vs.time gives a straight line the time taken for the completion of 75% reaction is thrice the of the reaction the pre-exponential factor in the Arrhenius equation has the dimension of time,
28. Problem 26 According to Graham’s law at a given temperature the ratio of the rates of diffusion of gases A and B is given by a. b. c. d.
29. Problem 27 For the reaction at a given temperature the equilibrium amount of can be increased by adding a suitable catalyst adding an inert gas decreasing the volume of the container increasing the amount of
30. Problem 28 Which of the following statement (s)is (are) correct? The solution of HCl is 8 The conjugate base of Autoprotolysis constant of water increases with temperature When a solution of a weak monoprotic acid is titrated against a strong base,at half-neutralisation point
31. SECTION – II REASON TYPE QUESTION The questions below (29 to40)consist of an assertion in column 1 and the reason in column 2.Against the specific question number, write in the appropriate space.
32. Problem 29 Benzonitrile is prepared by the Cyanide is a strong nucleophile.reactionof chlorobenzenewith Potassium cyanide. If both assertion and reason are correct ,and reason is the correct explanation of the assertion. If both assertion and reason are correct, but reason is not the correct explanation of the assertion If assertion is correct but reason is incorrect. If assertion is incorrect but reason is correct.
33. Problem 30 Fatom has a less negative Additional electrons are repelled more effectivel electrons affinity than Cl by 3p elecrons in Cl atom than by ep electrons in atom. F atom. If both assertion and reason are correct ,and reson is the correct explanation of the assertion. If both assertion and reason are correct,but reason is not the correct eplanation of the assertion. If assertion is correct but reason is incorrect. If assertion is incorrect but reason is correct.
34. Problem 31 Nuclide is less stable than Nuclides having odd number of protons and neutrons are generally unstable. If both assertion and reason are correct ,and reason is the correct explanation of the assertion. If both assertion and reason are correct, but reason is not the correct eplanation of the assertion. If assertion is correct but reason is incorrect. If assertion is incorrect but reason is correct.
35. Problem 32 is amphoteric in nature bonds canbe broken with equal ease in . If both assertion and reason are correct ,and reson is the correct explanation of the assertion. If both assertion and reason are correct,but reason is not the correct eplanation of the assertion. If assertion is correct but reason is incorrect. If assertion is incorrect but reason is correct.
36. Problem 33 The value of van der Waals' constant Hydrogen bonding is present in ‘a’ is larger for ammonia than for nitrogen. ammonia If both assertion and reason are correct ,and reason is the correct explanation of the assertion. If both assertion and reason are correct, but reason is not the correct eplanation of the assertion. If assertion is correct but reason is incorrect. If assertion is incorrect but reason is correct.
37. Problem 34 is diamagnetic. The electrons are lost from 4s orbital to form If both assertion and reason are correct ,and reason is the correct explanation of the assertion. If both assertion and reason are correct, but reason is not the correct explanation of the assertion. If assertion is correct but reason is incorrect. If assertion is incorrect but reason is correct.
38. Problem 35 Addition of to 1-butene gives The product contains one asymmetric two optical isomers. carbon. If both assertion and reason are correct ,and reason is the correct explanation of the assertion. If both assertion and reason are correct, but reason is not the correct explanation of the assertion. If assertion is correct but reason is incorrect. If assertion is incorrect but reason is correct.
39. Problem 36 The electronic structure of structure is not allowed because octet around is cannot be expanded If both assertion and reason are correct ,and reason is the correct explanation of the assertion. If both assertion and reason are correct, but reason is not the correct explanation of the assertion. If assertion is correct but reason is incorrect. If assertion is incorrect but reason is correct.
40. Problem 37 LiCl is predominantly a covalent Electro negativity difference between Li compound and Cl is too small. If both assertion and reason are correct ,and resson is the correct explanation of the assertion. If both assertion and reason are correct, but reason is not the correct explanation of the assertion. If assertion is correct but reason is incorrect. If assertion is incorrect but reason is correct.
41. Problem 38 is stronger acid than In there are two nitrogen-to-oxygen bonds whereas in there is only one. If both assertion and reason are correct ,and reason is the correct explanation of the assertion. If both assertion and reason are correct, but reason is not the correct explanation of the assertion. If assertion is correct but reason is incorrect. If assertion is incorrect but reason is correct.
42. Problem 39 Sulphate is estimated as Ionic radius of is smaller than that of and not as . . If both assertion and reason are correct ,and reason is the correct explanation of the assertion. If both assertion and reason are correct, but reason is not the correct explanation of the assertion. If assertion is correct but reason is incorrect. If assertion is incorrect but reason is correct.
43. Problem 40 Acetic acid does not undergo Acetic acid has no alpha hydrogen's. halo form reaction. If both assertion and reason are correct ,and reason is the correct explanation of the assertion. If both assertion and reason are correct, but reason is not the correct explanation of the assertion. If assertion is correct but reason is incorrect. If assertion is incorrect but reason is correct.
