Which of the following elements is most reactive :

Options :
  1. Alluminium
  2. Chromium
  3. Potassium
  4. Calcium
Answer and Explanation :-

Answer: Option 4

Explanation:

Calcium is a slivery white metal.The surface of the calcium metal is covered with a thin layer of oxide that helps protect the metal from attack by air.

How do you rate this queston?  Very Easy  Easy  Average  Above Average  Tough

Previous Question : Which of the following cell organelles is absent in animal cells :

Next Question : Blood is a which type of tissue :

Click here for online test on General Science

Responses


 (Getemail alerts when others member replies)







It's not that we have to quit this life one day, it's how many things we have to quit all at once: holding hands, hotel rooms, music, the physics of falling leaves, vanilla and jasmine, poppies, smiling, anthills, the color of the sky, coffee and cashmere, literature, sparks and subway trains... If only one could leave this life slowly!
-Roman Payne Hope and Despair