March 01, 2015

ONLINE TEST - ADDITIONAL Qs 2014 - EM

This Quiz is a Simple test for + 2 Science group students which contain Questions asked in March, June & September - 2014. Just participate in it and test your skill.

  1. The most common oxidation state of actinide is
  2. + 2
    + 1
    + 3
    + 4

  3. Which of the following lanthanide have no partly filled 4f-subshell but have electrons in 5d-subshell?
  4. Scandium
    Titanium
    Zinc
    Lanthanum

  5. Chlorophyll is a_________ complex
  6. Magnesium – Porphyrin
    Iron - Porphyrin
    Copper – Porphyrin
    Nickel - Porphyrin

  7. In the nuclear reaction, 90Th232 82Pb208  the number of α and β particles emitted are,
  8. 1α, 4β
    2α, 2β
    6α, 4β
    8α, 4β

  9. The smallest repeating unit in space lattice which when repeated over and again results in the crystal of the given substance is called
  10. Space lattice
    Crystal lattice
    Unit cell
    Isomorphism

  11. Presence of moisture
  12. activates the catalyst
    deactivates the catalyst
    increases the product
    makes the catalyst porous

  13. Ethyl alcohol cannot be used as a solvent for CH3MgI because
  14. CH3MgI reacts with alcohol giving methane
    The reaction between them is explosive in nature
    CH3MgI is converted to C2H5MgI
    Alcohol is immiscible with CH3MgI

  15. Tollen’s reagent is
  16. Ammoniacal cuprous chloride
    Ammoniacal cuprous oxide
    Ammoniacal silver nitrate
    Ammoniacal silver chloride

  17. The order ofreactivity of carboxylic acid derivatives is
  18. Acid chloride > Ester > Amide > Acid anhydride
    Acid chloride > Acid anhydride > Ester > Amide
    Acid chloride > Amide > Acid anhydride > Ester
    Acid anhydride > Ester > Amide > Acid chloride

  19. Methyl isocyanide on reduction using LiAlH4 gives
  20. Methyl amine
    Ethyl amine
    Di methyl amine
    Trimethyl amine

  21. _________ acts as a protective agent on the surfaces of animals and plants.
  22. Carbohydrates
    Vitamins
    Nucleic acids
    Waxes

  23. In a molecule when Nb = 8 and Na = 2 then the bond order is
  24. 3
    4
    2.5
    2

  25. The oxidation state of Uranium in UO2Cl2 is
  26. + 2
    + 4
    + 5
    + 6

  27. The type of isomerism found in the complexes [Co(NO2)(NH3)5]SO4 and [Co(SO4)(NH3)5] NO2
  28. Hydrate isomerism
    Co-ordination isomerism
    Linkage isomerism
    Ionisation isomerism

  29. In the nuclear reaction 92U238 82Pb206 the number of α and β particles emitted are
  30. 7α, 5β
    6α, 4β
    4α, 3β
    8α, 6β

  31. Which is the correct statement of IInd law of thermodynamics?
  32. A process accompanied by deccrease in entropy tends to be spontaneous
    Efficiency of a machine can be cent percent
    It is impossible to transfer heat from a cold body to a hot body by a machine without doing any   work
    It is possible to convert the input energy completely to work by a machine

  33. The maximum yield of SO3 in contact process is
  34. 97%
    37%
    50%
    47%

  35. Arrhenius equation is given as
  36. k = Ae– 1/RT
    k = Ae– RT / Ea
    k = Ae– Ea/RT
    k = AeEa/RT

  37. The catalyst used for the decomposition of KClO3 is
  38. MnO2
    Cl2
    V2O5
    Pt

  39. The value of enthalpy of neutralisation of strong acid by strong base is
  40. – 87.32 kJ equiv– 1
    – 57.32 kJ equiv– 1
    – 72.57 kJ equiv– 1
    – 77.23 kJ equiv– 1

  41. A compound that gives a positive iodoform test is
  42. 1 - pentanol
    2 - pentanone
    3 - pentanone
    pentanal

  43. Bromination of anisole give
  44. o - bromoanisole
    m - bromoanisole
    p - bromoanisole
    both a) and c)

  45. Formaldehyde polymerises to give
  46. Paraldehyde
    Paraformaldehyde
    Formalin
    Formic acid

  47. The reagent that cannot be used for the conversion of C6H5–NO2 → C6H5 –NH2
  48. Sn / HCl
    LiAIH4
    H2 / Ni
    Zn / NaOH

  49. Shape of p-orbital is
  50. spherical
    clover leaf
    dumb-bell
    doughnut

  51. A substance which increases the activity of a catalyst
  52. positive catalyst
    negative catalyst
    promoter
    catalytic poison

  53. In the following radioactive decay, 92X232 89Y220, how many α and β particles are ejected.
  54. 3α, 3β
    5α, 3β
    3α, 5β
    5α, 5β

  55. Ethylene glycol forms terylene with
  56. Adipic acid
    Phthalic anhydride
    Terephthalic acid
    Oxalic acid

  57. The percentage efficiency of a heat engine working between the temperature T1 K and T2 K (T1 > T2) is given by
  58. (T2 – T1 / T2) x 100
    (T1 – T2 / T1) x 100
    (T1 / T2) x 100
    (T2 / T1) x 100

  59. A metal ion from the first transition series forms an octahedral complex with magnetic moment of 4.9 BM and another octahedral complex which is diamagnetic. The metal ion is
  60. Fe2+
    Co2+
    Mn2+
    Ni2+

  61. Excess of sodium hydroxide reacts with zinc to form
  62. Zn - H2
    Na2ZnO2
    ZnO
    Zn(OH)2

  63. Purity of blister copper is
  64. 100%
    98%
    90%
    12%

  65. If Δng is positive
  66. Kp = Kc
    Kc < Kp
    Kc > Kp
    Kc = 0

  67. Which of the following particle having same kinetic energy, would have the maximum de-Broglie wave length?
  68. α - particle
    proton
    β - particle
    neutron

  69. Important ore of lanthanides is
  70. Pitch blende
    Monozite
    Gypsum
    Chormite

  71. For the titration between HCl and sodium carbonate the indicator used is
  72. potassium permanganate
    phenolphthalein
    litmus
    methyl orange

  73. One can draw the map of building on a glass plate by
  74. HI
    HF
    HBr
    HCl

  75. Colloidal milk of magnesia is used
  76. as germ killer
    as fertilizer
    for stomach disorders
    as tonic

  77. The reaction between a primary amine, chloroform and alcoholic KOH is known as
  78. Gabriel reaction
    Mustard oil reaction
    Carbyl amine reaction
    Hoffmann reaction

  79. Which of the following lanthanide have no partly filled 4f-subshell but have electrons in 5d-subshell?
  80. Ce
    Lu
    Pm
    Nd
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2 comments:

  1. very useful for toppers,please update public exam questions

    ReplyDelete
    Replies
    1. Thank you.
      Updated.
      Visit - http://chem-brains.blogspot.in/2015/03/online-test-tm-em-hyperlinks.html

      Delete