AIIMS MBBS 2017 Question Paper with Answer Key PDF (May 28)

AIIMS MBBS Questions

• 1.

  The following equilibria are given : $N _{2}+3 H _{2} \rightleftharpoons 2 NH _{3}\, K _{1}$ $N2 + O2 \rightleftharpoons 2NO\, K_2$ $H_2 + \frac{1}{2} O_2 \rightleftharpoons H_2 O \, K_3$ The equilibrium constant of the reaction $2NH_3 + \frac{5}{2} O_2 \rightleftharpoons 2NO + 3H_2 O$ in terms of $K_1,\, K_2$ and $K_3$ is

  • $K_1 K_1 K_3$
  • $\frac{K_1 K_2}{K_3}$
  • $\frac{K_1 K_3^2}{K_2}$
  • $\frac{K_2 K_3^3}{K_1}$
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• 2.

  Elemental silicon to be used as a semiconductor is purified by

  • heating under vacuum
  • floatation
  • zone refining
  • electrolysis
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• 3.

  All vertebrates are chordates but all chordates are not vertebrates, why ?

  • Notochord is replaced by vertebral column in adult of some chordates
  • Ventral hollow nerve cord remains throughout life in some chordates
  • All chordates possess vertebral column
  • All chordates possess notochord throughout their life
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• 4.

  1g of water, of volume 1 cm$^3$ at 100?C, is converted into steam at same temperature under normal atmospheric pressure ($\simeq$ ) $1\times 10^5$Pa . The volume of steam formed equals 1671 cm$^3$. If the specific latent heat of vaporisation of water is 2256 J/g, the change in internal energy is,

  • 2423 J
  • 2089 J
  • 167 J
  • 2256 J
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• 5.

  If N is the number of turns in a coil, the value of self inductance varies as

  • $N^0$
  • N
  • $N^2$
  • $N^{-2}$
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• 6.

  In a u-tube as shown in figure, water and oil are in the left side and right side of the tube respectively. The heights from the bottom for water and oil columns are 15 cm and 20 cm respectively. The density of the oil is :- [take $\rho_{water}$ = 1000 kg/m$^3$]

  • 1200 kg/m$^3$
  • 750 kg/m$^3$
  • 1000 kg/m$^3$
  • 1333 kg/m$^3$
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