AMUEEE 2017 Chemistry Question Paper with Answer Key PDFs (April 30)

AMUEEE Questions

• 1.

  Three particles, two with masses $ m $ and one with mass $ M $ , might be arranged in any of the four configurations shown below. Rank the configurations according to the magnitude of the gravitational force on $ M $ , least to greatest

  

  • (i), (ii), (iii), (iv)
  • (ii), (i), (iii), (iv)
  • (ii), (i), (iv), (iii)
  • (ii), (iii), (iv), (i)
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• 2.

  The time-period of a physical pendulum is $ 2\pi\sqrt{I /mgd} $ , where $ I $ is the moment of inertia of the pendulum about the axis of rotation and $ d $ is perpendicular distance between the axis of rotation and the centre of mass of the pendulum A circular ring hangs from a nail on a wall. The mass of the ring is $ 3 \,kg $ and its radius is $ 20\, cm $ . If the ring is slightly displaced, the time of resulting oscillations will be

  • $ 1.0 \, s $
  • $ 1.3 \, s $
  • $ 1.8 \, s $
  • $ 2.1 \, s $
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• 3.

  The only force acting on a $ 2 \,kg $ body that is moving in $ xy- $ plane has a magnitude of $ 5\, N $ . The body initially has a velocity of $ 4 \,m/s $ in the positive $ x $ -direction. Some time later, the body has a velocity of $ 6 \,m/s $ in the positive $ y- $ direction. The work done on the body by the $ 5 \,N $ force during this time is

  • 20 J
  • 40 J
  • 50 J
  • 72 J
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• 4.

  Figure shows three arrangements of electric field lines. In each arrangement, a proton is released from rest at point $ A $ and then accelerated through point $ B $ by the electric field. Points $ A $ and $ B $ have equal separations in the three arrangements. If $ p_{1}, p_{2} $ and $ p_{3} $ are linear momentum of the proton at point $ B $ in the three arrangement respectively, then

  

  • $ p_{1} > \, p_{3} > \, p_{2} $
  • $ p_{1} > \, p_{2} > \, p_{3} $
  • $ p_{2} > \, p_{1} > \, p_{3} $
  • $ p_{3} > \, p_{2} > \, p_{1} $
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• 5.

  The ratio of the half-life time $ (t_{1/2}) $ , to the three quarter life-time, $ (t_{3/4}) $ , for a reaction that is second order

  • depends directly on concentration of reactants
  • is independent of concentration of reactant
  • depends inversely on the concentration of reactants
  • depends directly to the square of concentration of reactants
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• 6.

  $ 0.002\, M $ solution of a weak acid has an equivalent conductance $ (\wedge) 60\, ohm^{-1}\, cm^{2}\, eq^{-1} $ . What will be the $ pH $ ? (Given : $ \wedge = 400 \, ohm^{-1} \, cm^{2} \, eq^{-1} $ ]

  • $ 3.52 $
  • $ 2.52 $
  • $ 1.87 $
  • $ 2.7 $
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