Solved papers for JEE Main & Advanced JEE Main Online Paper (Held on 9 April 2013)

done JEE Main Online Paper (Held on 9 April 2013) Total Questions - 1

• question_answer1)                 Calcination is the process in which:                   JEE Main Online Paper (Held On 09 April 2013)
  A)
                  ore is heated above its melting point to expel \[{{H}_{2}}O\] or \[C{{O}_{2}}\] or \[S{{O}_{2}}\]                
  done clear
  B)
                  ore is heated below its melting point to expel volatile impurities                
  done clear
  C)
                  ore is heated above its melting point to removes S, As and Sb as \[S{{O}_{2}},A{{s}_{2}}{{O}_{3}}\] and\[S{{b}_{2}}{{O}_{3}}\] respectively                
  done clear
  D)
                  ore is heated below its melting point to expel \[{{H}_{2}}O\]or\[C{{O}_{2}}\]                
  done clear
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