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Important Questions in Chemistry for CSIR NET Exam



Important Questions in Chemistry for NET Exam - Paper II



1.Which one of the following is the rare gas


  1. di atomic

  2. mono atomic

  3. tetra atomic

  4. both 2 & 3


Answer : 1



2.Acidic rain is produced by


  1. carbon monoxide

  2. silver nitrate

  3. benzole

  4. silver iodide


Answer : 3




3.Name an organic compound that used to produce a bluish green colour flame on heating in presence of copper is


  1. benzoic acid

  2.  chlorobenzene

  3.  benzaldehyde

  4.  aniline


Answer: 2



4. Aquq - regia is a mixture of concentrated hydrochloric acid and concentrated nitric acid in the ratio of


  1. 3:1

  2. 2:5

  3. 1:6

  4. 3:2


Answer: 1



 5.Who among the following discovered Neon


  1. Rayleigh

  2. Lockyear

  3. Ramsay and Travers

  4. Janssen


Answer: 3



6.What kind of behavior  can be expected if a transition metal ion exists in its highest oxidation state


  1. an oxidising agent

  2. reducing agent

  3. chelating agent

  4. both 2 & 3


Answer: 1



7.The catalyst used for the Decon's process for the manufacture of chlorine is


  1. concentrated hydrochloric acid

  2. Cupric chloride

  3. Nickel

  4. Invertase enzyme


Answer: 2



8. Name the type of colloid inface cream


  1. emulsion

  2. foam

  3. gel

  4. all of the above



Answer: 1



9. Among the following which one minamata disease is caused by Cadmium?


  1. cancer

  2. itai-itai diseases

  3. minamato diseases

  4. both 2 & 3


Answer: 2



10. What are the monomers for the polymer Melmac?


  1. phenol+ formaldehyde

  2. urea +  formaldehyde

  3. ethene + formaldehyde

  4. melamine + formaldehyde



Answer: 4


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