Failed to connect to MySQL: Access denied for user 'examnext_online'@'localhost' (using password: YES)
Welcome to Sarthaks eConnect Question Bank
Practice Online Test Series for JEE Main 2018 & NEET 2018
The equivalent weight of `NO_3^-` in the following reaction, `NO_3^-1->N_2` is-
28
2.8
14
12.4