NEET 2018 Question Paper with Answer Key PDFs in Tamil LL

NEET Questions

• 1.

  At a certain temperature in a 5 L vessel, 2 moles of carbon monoxide and 3 moles of chlorine were allowed to reach equilibrium according to the reaction,$CO + Cl_{2} <=> COCl_2 $ At equilibrium, if one mole of CO is present then equilibrium constant $(K_c)$ for the reaction is :

  • 2
  • 2.5
  • 3
  • 4
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• 2.

  Minority carriers in a $p-type$ semiconductor are

  

  • Holes
  • Free electrons
  • Both holes and free electrons
  • Neither holes nor free electrons
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• 3.

  This is new question created.

  • answe 1

  • 9	9	9
    6	7	80
    4	3	2

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• 4.

  An example of a psychedilic agent is

  • DNA
  • LSD
  • DDT
  • TNT
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• 5.

  What will be the equilibrium constant of the given reaction carried out in a $ 5 \,L $ vessel and having equilibrium amounts of $ A_2 $ and $ A $ as $ 0.5 $ mole and $ 2 \times 10^{-6} $ mole respectively ? The reaction : $ \ce{A2 <=> 2A} $

  • $ 0.16 \times 10^{-11} $
  • $ 0.25 \times 10^{5} $
  • $ 0.4 \times 10^{-5} $
  • $ 0.2 \times 10^{-11} $
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• 6.

  A colourless, neutral, paramagnetic oxide of Nitrogen $'P'$ on oxidation gives reddish brown gas $Q$. $Q$ on cooling gives colourless gas $R$. $R$ on reaction with P gives blue solid $S$. Identify $P , Q , R , S$, respectively

  

  • $N _{2} O\, NO\, NO _{2} \,N _{2} O _{5}$
  • $N _{2} O\, NO _{2}\, N _{2} O _{4} \,N _{2} O _{3}$
  • $NO \,NO _{2} \,N _{2} O _{4}\, N _{2} O _{3}$
  • $NO \,NO\, N _{2} O _{4} \,N _{2} O _{5}$
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