JEE Main & Advanced
JEE Main Paper (Held On 8 April 2017)
question_answer
A metal 'M' reacts with nitrogen gas to afford \['{{M}_{3}}N'.'{{M}_{3}}N'\] on heating at high temperature gives back 'M' and on reaction with water produces a gas 'B'. Gas 'B' reacts with aqueous solution of \[CuS{{O}_{4}}\]to form a deep blue compound. 'M' and 'B' respectively are : [JEE Online 08-04-2017]