February 01, 2015

ADDITIONAL QUESTIONS 2014 – 1 MARK


1. The most common oxidation state of actinide is
a) +2                            b) 1                                          c) +3                                        d) +4
2. Which of the following lanthanide have no partly filled 4f-subshell but have electrons in 5d-subshell?
 a) Ce                           b) Lu                                       c) Pm                                       d) Nd /
 a) Scandium               b) Titanium                                c) Zinc                                     d) Lanthanum
3. Chlorophyll is a_________
 a) Magnesium - Porphyrin complex                             b) Iron - Porphyrin complex
 c) Copper - Porphyrin complex                                  d) Nickel - Porphyrin complex
4. In the nuclear reaction, 90Th232 82Pb208 the number of α and β particles emitted are,
a) 1α, 4β                      b) 2α, 2β                                  c) 6α, 4β                                  d) 8α, 4β
5. The smallest repeating unit in space lattice which when repeated over and again results in the crystal of the given substance is called
a) Space lattice             b) Crystal lattice                       c) Unit cell                  d) Isomorphism
6. Presence of moisture in contact process
a) activates the catalyst                                               b) deactivates the catalyst
c) increases the product                                              d) makes the catalyst porous
7. Ethyl alcohol cannot be used as a solvent for CH3MgI because
a) CH3MgI reacts with alcohol giving methane
b) The reaction between them is explosive in nature
c) CH3MgI is converted to C2H5MgI                          d) Alcohol is immiscible with CH3MgI
8. Tollen’s reagent is
a) Ammoniacal cuprous chloride                                  b) Ammoniacal cuprous oxide
c) Ammoniacal silver nitrate                                         d) Ammoniacal silver chloride
9. The order of reactivity of carboxylic acid derivatives is
a) Acid chloride > Ester > Amide > Acid anhydride
b) Acid chloride > Acid anhydride > Ester > Amide
c) Acid chloride > Amide > Acid anhydride > Ester
d) Acid anhydride > Ester > Amide > Acid chloride
10. Methyl isocyanide on reduction using LiAlH4 gives
a) Methyl amine           b) Ethyl amine             c) Di methyl amine                  d) Trimethyl amine
11. _________ acts as a protective agent on the surfaces of animals and plants.
a) Carbohydrates         b) Vitamins                                c) Nucleic acids                       d) Waxes
12. In a molecule when Nb = 8 and Na = 2 then the bond order is
a) 3                              b) 4                                          c) 2.5                                       d) 2
13. The oxidation state of Uranium in UO2Cl2 is
a) + 2                           b) + 4                                       c) + 5                                       d) + 6
14. The type of isomerism found in the complexes
                   [Co(NO2)(NH3)5]SO4 and [Co(SO4)(NH3)5]NO2
a) Hydrate isomerism                                                  b) Co-ordination isomerism
c) Linkage isomerism                                                  d) Ionisation isomerism
15. In the nuclear reaction 92U238 82Pb206 the number of α and β particles emitted are
a) 7α, 5β                      b) 6α, 4β                                  c) 4α, 3β                                  d) 8α, 6β
16. Which is the correct statement of IInd law of thermodynamics?
a) A process accompanied by deccrease in entropy tends to be spontaneous
b) Efficiency of a machine can be cent percent
c) It is impossible to transfer heat from a cold body to a hot body by a machine without doing any work
d) It is possible to convert the input energy completely to work by a machine
17. The maximum yield of SO3 in contact process is
a) 97%                         b) 37%                                     c) 50%                                     d) 47%
18. Arrhenius equation is given as
a) k = Ae– 1/RT          b) k = Ae– RT / Ea                  c) k = Ae– Ea/RT        d) k = AeEa/RT
19. The catalyst used for the decomposition of KClO3 is
a) MnO2                      b) Cl2                                      c) V2O5                                  d) Pt
20. The value of enthalpy of neutralisation of strong acid by strong base is
a) – 87.32 kJ equiv– 1                                     b) – 57.32 kJ equiv– 1
c) – 72.57 kJ equiv– 1                                     d) – 77.23 kJ equiv– 1
21. A compound that gives a positive iodoform test is
a) 1 - pentanol             b) 2 - pentanone                      c) 3 - pentanone                      d) pentanal
22. Bromination of anisole give
a) o - bromoanisole      b) m - bromoanisole                c) p - bromoanisole     d) both a) and c)
23. Formaldehyde polymerises to give
a) Paraldehyde            b) Paraformaldehyde              c) Formalin                              d) Formic acid
24. The reagent that cannot be used for the conversion of C6H5–NO2 → C6H5 –NH2
a) Sn / HCl                  b) LiAIH4                               c) H2 / Ni                    d) Zn / NaOH
25. Shape of p-orbital is
a) spherical                  b) clover leaf                           c) dumb-bell                d) doughnut
26. A substance which increases the activity of a catalyst
a) positive catalyst      b) negative catalyst                 c) promoter                  d) catalytic poison
27. In the following radioactive decay, 92X232 89Y220, how many α and β particles are ejected.
a) 3α, 3β                      b) 5α, 3β                                  c) 3α, 5β                              d) 5α, 5β
28. Ethylene glycol forms terylene with
a) Adipic acid                                                              b) Phthalic anhydride
c) Terephthalic acid                                                     d) Oxalic acid
29. The percentage efficiency of a heat engine working between the temperature T1 K and T2 K (T1 > T2) is given by
a) (T2 – T1 / T2) x 100                                                b) (T1 – T2 / T1) x 100
c) (T1 / T2) x 100                                                        d) (T2 / T1) x 100
30. 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
a) Fe2+                        b) Co2+                                   c) Mn2+                                  d) Ni2+
31. Excess of sodium hydroxide reacts with zinc to form
a) Zn - H2                   b) Na2ZnO2                            c) ZnO                                     d) Zn(OH)2
32. Purity of blister copper is
a) 100%                       b) 98%                                     c) 90%                                     d)12%
33. If Δng is positive
a) Kp = Kc                  b) Kc < Kp                              c) Kc > Kp                              d) Kc= 0
34. Which of the following particle having same kinetic energy, would have the maximum de-Broglie wave length?
a) α - particle               b) proton                                 c) β - particle                        d) neutron
35. Important ore of lanthanides is
a) Pitch blende            b) Monozite                             c) Gypsum                            d) Chormite
36. For the titration between HCl and sodium carbonate the indicator used is
a) potassium permanganate     b) phenolphthalein         c) litmus                               d) methyl orange
37. One can draw the map of building on a glass plate by
a) HI                            b) HF                                     c) HBr                               d) HCl
38. Colloidal milk of magnesia is used
a) as germ killer           b) as fertilizer                          c) for stomach disorders         d) as tonic
39. The reaction between a primary amine, chloroform and alcoholic KOH is known as
a) Gabriel  reaction                                                      b) Mustard oil reaction
c) Carbyl amine reaction                                             d) Hoffmann reaction

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1 comment:

  1. very much of thanks -krishnasamy student

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