AIPMT 2005 Prelims

170 Questions • 170 Minutes • 2005

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Q61
A nuclide of an alkaline earth metal undergoes radioactive decay by emission of three α-particles in succession. The group of the periodic table to which the resulting daughter element would belong is :
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Q62
The surface tension of which of the following liquid is maximum ?
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Q63
Which one of the following forms micelles in aqueous solution above certain concentration ?
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Q64
Equilibrium constants K₁ and K₂ for the following equilibria : NO(g) + ½O₂(g) ⇌ NO₂(g) and 2NO₂(g) ⇌ 2NO(g) + O₂(g) are related as :
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Q65
Which of the following would have a permanent dipole moment ?
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Q66
The rate of reaction between two reactants A and B decreases by a factor of 4, if the concentration of reactant B is doubled. The order of this reaction with respect to reactant B is :
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Q67
Which functional group participates in disulphide bond formation in proteins ?
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Q68
Which one of the following is an inner orbital complex as well as diamagnetic in behaviour ? (Atomic no. : Zn = 30, Cr = 24, Co = 27, Ni = 28)
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Q69
H₂S gas when passed through a solution of cations containing HCl precipitates the cations of second group of qualitative analysis but not those belonging to the fourth group. It is because :
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Q70
Which one of the following oxides is expected to exhibit paramagnetic behaviour ?
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Q71
Which one of the following is expected to exhibit optical isomerism ? (en = ethylenediamine)
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Q72
The energy of second Bohr orbit of the hydrogen atom is −328 kJ mol⁻¹ ; hence the energy of fourth Bohr orbit would be :
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Q73
The correct order of acid strength is :
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Q74
The main reason for larger number of oxidation states exhibited by the actinides than the corresponding lanthanides, is :
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Q75
Names of some compounds are given. Which one is not correct in IUPAC system ?
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Q76
Which one of the following arrangements represents the correct order of electron gain enthalpy (with negative sign) of the given atomic species ?
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Q77
A solution has a 1 : 4 mole ratio of pentane to hexane. The vapour pressure of the pure hydrocarbons at 20°C are 440 mm of Hg for pentane and 120 mm of Hg for hexane. The mole fraction of pentane in the vapour phase would be :
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Q78
4.5 g of aluminium (at. mass 27 amu) is deposited at cathode from Al³⁺ solution by a certain quantity of electric charge. The volume of hydrogen produced at STP from H⁺ ions in solution by the same quantity of electric charge will be :
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Q79
The mole fraction of the solute in one molal aqueous solution is :
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Q80
The main organelle involved in modification and routing of newly synthesized proteins to their destinations is :
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Paper Info
  • Exam: AIPMT Prelims
  • Year: 2005
  • Questions: 170
  • Duration: 170 mins
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