1.

Which of the following elements will form an acidic oxide? (a) An element with atomic number 7 (b) An element with atomic number 3 (c) An element with atomic number 12(d) An element with atomic number 19

Answer»

The answer is (a) An element with atomic number 7

  • Element with atomic number 7 has electron configuration 2,5 which means it can gain 3 electrons and is a electronegative element. 
  • It should be a non metal and non-metals will form acidic oxide.


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