question_answer

Consider the following steps: \[C{{u}_{2}}S\,\,\xrightarrow{roast\,in\,air}\,A\,\xrightarrow{Roast\,without\,air}\,B\] Which is not the correct statement:

A) It is salt-reduction

B) A is only \[C{{u}_{2}}O\] & B is a mixture of Cu & \[S{{O}_{3}}\]

C) A is a mixture of \[C{{u}_{2}}O\] and \[C{{u}_{2}}S\] and B is a mixture of Cu & \[S{{O}_{2}}\]

D) All are incorrect statement