2023 2024 Student Forum > Management Forum > Main Forum

 
  #2  
28th April 2016, 10:34 AM
Super Moderator
 
Join Date: May 2012
Re: Orissa JEE Solved Papers

Odisha Joint Entrance Examination (OJEE) is a state-government controlled centralised test for admission to many private and governmental medical, engineering & management institutions in Odisha

paper pattern :

PHYSICS (60 Questions)
CHEMISTRY (60 Questions)
MATHEMATICS (60 Questions)
BOTANY (30 Questions)
ZOOLOGY (30 Questions)

the questions of the Chemistry section of the OJEE Entrance test are asked from the following topics :


• General conduct of matter
• Liquid State
• Solutions
• Gaseous State
• Atoms and molecules
• Structure of atoms and molecules
• Chemical bonds
• Periodic classification
• Chemical Energetic, Equilibrium and Kinetics
• Energetic
• Equilibria
• Kinetics
• Types of chemical response
• Non-metals
• Electrochemistry
• Nuclear chemistry
• Metals and metallurgy
• Organic chemistry
• Introductory
• Aliphatic compounds
• Aromatic compounds
• Biochemistry
• Chemistry inside the service of mankind

OJEE Entrance test question paper Chemistry
1. The final product of the reaction HC = CH + 2HCI →→→will be :
(1) CH2CI-CH2CI (2) CH2=CHCI
(3) CH3CHCI2 (4) CHCI=CHC
2. Which of the following is amphoteric :
(1) GeO2 (2) CO2
(3) PbO2 (4) All same
3. CH3COOC5H11 is obtained by :
(1) C5H11OH + CH3COOH
(2) C5H11CH2OH = HCOOH
(3) C2H5OH = C5H11OH
(4) (CH3)3 –C-COOH = C5H11OH
4. 5 amp. current is passes through a dry cell for 2 hours. The value of produced electric
current will be :
(1) 36 x 108 C (2) 3.6 x 108 C
(3) 36 x 104 C (4) 3.6 x 104 C
5. Which of the following statement is false for tranis-1, 2-dichloro ethane :
(1) chlorine atoms are nearer to each other
(2) total nos of bonds are six
(3) free rotation of C=C is possible
(4) none of these
6. Orthouitropnenol is a A;
(1) Lewis base (2) Lewis acid
(3) 1 and 2 (4) nither 1 nor 2
7. Which of the following shows cistrans isomerism :
(1) CH3-C-Br=C-C12
(2) CH3-CH=Ch2
(3) C1-CH=CH-CH3
(4) (CH3)2-C=CH-C1
8. Glycine works in a reaction as :
(1) Acid (2) Base (3) both 1 and 2 (4) none of these
9. The true statement for 2-chlrobutane and 3- chlrobutane is :
(1) First is more reactive than second
(2) Second is more reactive than first
(3) Chlorine atom in both are of different type
(4) One name is wrong, both are same
10. The magnetic moment of an ion having 4 unpaired electrons is :
(1) 3.9 B.M. (2) 2.8 B.M. (3) 1.7 B.M. (4) 4.9 B.M.
11. O-F bond in OF2 compound is formed by the overlapping of following orbitals :
(1) sp2-2p (2) sp3-2p (3) sp3-2s (4) sp-2p
12. The structure of [Cu(NH3)4]2+ is :
(1) square planner (2) angular (3) linear (4) tetrahedral
13. The no. of structural isomers of heptane is :
(1) equal to pentane (2) less than hexane
(3) more than pentane (4) less than pentane
14. Which of the following hydroxide is soluble in NH4OH :
(1) Sb(OH)3 (2) Bi(OH)3 (3) Fe(OH)3 (4) none of above
15. Which of the following differs from others :
(1) Pd (2) CO (3) Ni (4) Rb
16. The structure of phorone is :
(1) (CH3)2C(OH)C13
(2) (CH3)2C=CHCOCH=C(CH3)2
(3) (CH3)2C=CHCOCH3
(4) none of above
17. Which of the following is strongest electrolyte :
(1) C12H12O11
(2) H2O
(3) CH3COOH
(4) HI
18. Which of the following statement is true :
(1) O2
2- is diamagnetic
(2) O2
+ is paramagnetic
(3) No is diamagnetic
(4) He2
+ is less stable than He2
19. For which of the following elements the quantum nos are 3, 2, 0, + ½ :
(1) K (2) CO (3) Ne (4) C1
20. The coordination nos. of Na+ and C1- in NaCI are respectively :
(1) 6, 6 (2) 4, 6 (3) 6, 8 (4) 8, 8
21. In comparision of Cu and Ag :
(1) Cu is easily oxidized in comparision with Ag.
(2) Ag is easily oxidized in comparision with Cu
(3) Both oxidizes simultaneously
(4) Do not oxidizes
22. Molarity of 200 ml. of 18.25 N NaOH will be :
(1) 32.5 M (2) 91.25 M (3) 2.28 M (4) 22.8 M
23. In Haber’s process if temperature is increased :
(1) Reaction stops
(2) There is no effect
(3) Yield of NH3 decreases
(4) Yield of NH3 increases
24. Empirical formula of alkane, alkene and alkyne is :
(1) equal to cyclopean
(2) equal to each other
(3) all are different
(4) none of these
25. CF2C12 is used as :
(1) Anaesthic (2) Polymer (3) Refrigerant (4) Antipyretic
26. The weight of carbon atom is :
(1) 1.9 x 10-23 (2) 12 gm (3) 6 gm (4) 6.02 gm. X 1023 gm.
27. The pH of 10-8 M HCI is :
(1) less than 7 (2) less than 6 (3) 8 (4) 7
28. Which of the following statement is true :
(1) C6H6 does not show resonance
(2) CO2does not show resonance
(3) Both do not show resonance
(4) CO2and C6H6 show resonating structures
29. In which of the following compound >C=0 group is not present :
(1) Alkane (2) Aldehyde (3) Acids (4) Ketone
30. The mole fraction of acetone in a solution of 2.8 mole acetone and 8.2 mole of CHC13 will be :
(1) 0.540 (2) 0.241 (3) 0.254 (4) 0.524
31. Which of the following element has high ionization potential :
(1) Ne (2) Be (3) Li (4) O
32. Which of the following has highest boiling point :
(1) HI (2) HC1 (3) HF (4) HBr
33. The dry ice is :
(1) Solid H2O (2) Solid CO2 (3) Solid & Dry H2O (4) none of above

34. For the reaction 2A ←C + D the value of equilibrium constant is 1 x 10-3 . If [C] = 1.2 x 10-3 M,
[D] = 3.8 x 10-6 M the value of [A] will be :
(1) 5.2 x 10-6 M (2) 3.6 x 10-9 M
(3) 2.1 x 10-3 M (4) 4.8 x 10-12 M
35. Which of the following does not obey the octet rule :
(1) PCI3 (2) SF6 (3) SO2 (4) OF2
36. Mustard gas is found from :
(1) C2H4 & H2SO4 (2) C2H4 & H2S
(3) C2H4 & S2C12 (4) C2H4 & CH3SH
37. The most reactive metal is :
(1) Li (2) Au (3) F (4) Pt
38. Which of the following has highest melting point :
(1) C4H10 (2) C3H8 (3) C2H6 (4) CH4
39. Which of the following is not a metal :
(1) Au (2) Hg (3) Ag (4) none of these
40. In which of the following there is strong bond :
(1) C=C (2) C-C (3) C≡C (4) all same
41. The shape and size of 2p, 3p, 4p and 5p orbital are :
(1) only equal in d block
(2) equal in s block and different in p block
(3) different
(4) equal
42. Malachite is a ore of :
(1) Cu (2) Au (3) Ag (4) Mg
43. If the ionization constant of CH3COOH is 1.8 x 105, the degree of ionization of 0.01 M
CH3COOh will be :
(1) 1.8 x 10-7 (2) 1.8 (3) 4.2 x 10-2 (4) 42.4 x 10-5
44. If the price of Nac1 sugar are 2 and 14 rupees per kg. then the price of 1 mole NaC1 and 1
mole sugar will be :
(1) 7 Rs. (2) different (3) equal (4) 28 Rs.
45. In which of the following there are minimum nos. of molecule :
(1) 2 gm. H2 (2) 8 gm. O2 (3) 16 gm. CO2 (4) 4 gm. N2
46. In which of the following central atom uses sp2 hybrid orbitals :
(1) SbH3 (2) NH3 (3) PH3 (4) +CH3
47. Which of the following is paramagnetic :
(1) C (2) CN- (3) O2
- (4) NO+
48. Present atomic weight scale depends upon :
(1) C1-35.5 (2) O-16 (3) C-12 (4) H-1
49. C3H8 on combustion gives CO2 and H2O. The required volume of O2 will be :
(1) 5 times of C3H8 (2) three times (3) 2 times (4) 2.5 times
50. The oxidation state of B in KBF4 is :
(1) -3 (2) +2 (3) +3 (4) +4
51. The electronic configuration of strong electronegative element is :
(1) ns2np6 (2) ns2np4 (3) ns2np3 (4) ns2np5
52. The IUPAC name of CO2O3 is :
(1) Cobalt (III) oxide (2) Cobalt (II) oxide
(3) Cobaltans oxide (4) Cobalt oxide
53. The most light weight inert gas is :
(1) Ar (2) Ne (3) He (4) Kr
54. Which of the following element forms cation easily :
(1) Sr (2) Ne (3) Li (4) Mg
55. Which of the following is the strongest ionic compound :
(1) LiC1 (2) HC1 (3) CsC1 (4) CH3C1
56. Which of the following does not forms bond :
(1) s-s (2) p-d (3) p-p (4) d-d
57. CO is isoelectronic of :
(1) N2
+ (2) O2
+ (3) CN- (4) O2
-
58. All s-orbitals have :
(1) n ≠0, ≠0 (2) = 0 (3) n = 0 (4) n = 0, = 0
59. The dipole moment of BF3 is zero. Which of the following 6 bond orbitals are used by B :
(1) sp2 (2) sp (3) sp3 (4) none of these
60. Which of the following have acidic hydrogen :
(1) C2H4 (2) C2H2 (3) C2H6 (4) None of these
61. In which of the following molecule C-C bond is largest :
(1) Benzene (2) Ethene (3) Ethane (4) Ethyne
62. The set of four quantum number of e0 of 4-d will be :
(1) 3, 2, 0 + ½ (2) 4, 2, 0, + ½
(3) 4, 1, 0, + ½ (4) 4, 3, 0, + ½
63. The molecule which has linear structure is :
(1) NO2 (2) SO2 (3) CO2 (4) OCl2
64. Which of the following have not tetrahedral geometry :
(1) NH4
+ (2) BF-
4 (3) SiF4 (4) SF4
65. N=C-C-CH2 in this compound bond

H
Between C(1) and C(2) is formed by hybrid orbitals of :
(1) sp & sp2 (2) sp & sp3 (3) sp & sp (4) sp2-sp2
66. The dipole moment of CCl4 is zero, because of :
(1) equal electron affinity of C, and Cl
(2) equal size of C and Cl
(3) regular size of C and Cl
(4) planar structure
67. The number of moles of H2 at 500 cm.3 volume, 700 mm. pressure and 3000 K temperature
will be:
(1) 0.203x10-2 moles
(2) 20.x10-3 moles
(3) 20.3x10-2 moles
(4) 2.03 x 10-7 moles
68.Which of the following has electronic configuration as 4f1-145s25p65d16s2 :
(1) Representative elements
(2) Transition elements
(3) Lanthanides
(4) Actinides
69. The wave number of hydrogen atom in Lymen series is 82, 200 cm.-1. The electron
goes from :
(1) III orbit to II (2) II orbit to I (3) IV orbit to III (4) none of these
70. Teflen is a polymer of :
(1) PVC (2) Tetrafluro ethane (3) Tetra fluro ethane (4) C2H4
71. In which of the following s character is maximum :
(1) C6H6 (2) H2H6 (3) C2H4 (4) C2H2
72. Benzene hexachloride is found by :
(1) Addition (2) Elimination (3) Substitution reaction (4) All these
73. Alkane is found by :
(1) Reaction by alky l halide
(2) Wurtz reaction
(3) Grignard reagent
(4) All these

the question paper of the Chemistry section of the OJEE Examination are given below;
Attached Files
File Type: pdf OJEE Entrance test question paper Chemistry.pdf (279.0 KB, 57 views)


Quick Reply
Your Username: Click here to log in

Message:
Options

Thread Tools Search this Thread



All times are GMT +5. The time now is 07:16 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
SEO by vBSEO 3.6.0 PL2

1 2 3 4