Will class 12 board exams should be conducted or not please give ur opinion​

It won't lose or gain electrons if it's a covalent bond it shares the electrons with another atom or atoms. if it is an ionic bond it will lose the 3 electrons on the outer shell and become a positively charged ion.  credit goes to @sunshinebaby of answers.yahoo.com.

Ansa new gas is observed in the form of bubbles;