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
Which of the following cation gives coloured bead in borax bead test
`Ag^+`
`Cu^(+2)`
`Al^(+3)`
`Cd^(+2)`