BITSAT 2012 Paper
© examsiri.com
Question : 47 of 150
Marks:
+1,
-0
Bond enthalpies of H 2 , X 2 and HX are in the ratio 2 : 1 : 2. If enthalpy of formation of HX is –50 kJ m o l – 1 , the bond enthalpy of X 2 is
Go to Question: