AIPMT 2010 Mains

93 Questions • 93 Minutes • 2010

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(a) Centre of gravity (C.G.) of a body is the point at which the weight of the body acts (b) Centre of mass coincides with the centre of gravity if the earth is assumed to have infinitely large radius (c) To evaluate the gravitational field intensity due to any body at an external point, the entire mass of the body can be considered to be concentrated at its C.G. (d) The radius of gyration of any body rotating about an axis is the length of the perpendicular dropped from the C.G. of the body to the axis Which one of the following pairs of statements is correct?

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The magnetic moment of a diamagnetic atom is

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A thin circular ring of mass M and radius r is rotating about its axis with constant angular velocity ω. Two objects each of mass m are attached gently to the opposite ends of a diameter of the ring. The ring now rotates with angular velocity given by

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A monoatomic gas at pressure P₁ and volume V₁ is compressed adiabatically to 1/8th of its original volume. What is the final pressure of the gas?

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Among the elements Ca, Mg, P and Cl, the order of increasing atomic radii is

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The reaction 2A(g) + B(g) ⇌ 3C(g) + D(g) is begun with the concentrations of A and B both at an initial value of 1.00 M. When equilibrium is reached, the concentration of D is measured and found to be 0.25 M. The value for the equilibrium constant for this reaction is given by the expression

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The pressure exerted by 6.0 g of methane gas in a 0.03 m³ vessel at 129°C is (Atomic masses: C = 12.01, H = 1.01 and R = 8.314 J K⁻¹ mol⁻¹)

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Among the following four compounds a. Phenol b. Methyl phenol c. Metanitrophenol d. Paranitrophenol The acidity order is

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Among the following which one has the highest cation to anion size ratio?

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Three moles of an ideal gas expanded spontaneously into vacuum. The work done will be

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Which of the following species is not electrophilic in nature?

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A 0.66 kg ball is moving with a speed of 100 m/s. The associated wavelength will be (h = 6.6 × 10⁻³⁴ J s)

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Consider the following relations for emf of an electrochemical cell: (a) emf of cell = (Oxidation potential of anode) − (Reduction potential of cathode) (b) emf of cell = (Oxidation potential of anode) + (Reduction potential of cathode) (c) emf of cell = (Reduction potential of anode) + (Reduction potential of cathode) (d) emf of cell = (Oxidation potential of anode) − (Oxidation potential of cathode) Which of the above relations are correct?

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In which of the following molecules the central atom does not have sp3 hybridization?

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For vaporization of water at 1 atmospheric pressure, the values of ΔH and ΔS are 40.63 kJ mol⁻¹ and 108.8 J K⁻¹ mol⁻¹, respectively. The temperature when Gibbs energy change (ΔG) for this transformation will be zero, is

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Match List-I (substances) with List-II (process) employed in the manufacture of the substances and select the correct option. [table] List-I | List-II ; a. Sulphuric acid | (i) Haber's Process ; b. Steel | (ii) Bessemer's Process ; c. Sodium hydroxide | (iii) Leblanc Process ; d. Ammonia | (iv) Contact Process [/table]

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Match the compounds given in List-I with their characteristic reactions given in List-II. Select the correct option. [table] List-I | List-II ; a. CH₃CH₂CH₂CH₂NH₂ | (i) Alkaline hydrolysis ; b. CH₃C≡CH | (ii) With KOH (alcohol) and CHCl₃ produces bad smell ; c. CH₃CH₂COOCH₃ | (iii) Gives white ppt. with ammoniacal AgNO₃ ; d. CH₃CH(OH)CH₃ | (iv) With Lucas reagent cloudiness appears after 5 minutes [/table]

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The rate of the reaction 2NO + Cl₂ → 2NOCl is given by the rate equation rate = k[NO]²[Cl₂]. The value of the rate constant can be increased by

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Which one of the following complexes is not expected to exhibit isomerism?

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The IUPAC name of the compound CH₃CH=CHC≡CH is

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Paper Info

Exam: AIPMT Mains
Year: 2010
Questions: 93
Duration: 93 mins

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