LEARN WITH RAJAKRISHNAN

Dr. Rajakrishnan M, Assistant Professor in Commerce, PSG College of Arts & Science, Coimbatore, Tamil Nadu, India.

Notification

Quiz of the Day

June 30, 2019 ,

General Knowledge

  1. The gas usually filled in electric bulb is  ________ .

    2.  Oxygen
     Carbon-dioxide
     Hydrogen
     Nitrogen

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