`AB,A_(2)` and `B_(2)` are diatomic molecules. If the bond enthalpies of `A_(2), AB` and `B_(2)` are in the ratio `1:1:0.5` and the enthalpy of formation of `AB` from `A_(2)` and `B_(2)` is `-100kJ mol^(-1)` , what is the bond enthalpy of `A_(2)` ?A. 400 kJ `mol^(-1)`B. 200 kJ `mol^(-1)`C. 100 kJ `mol^(-1)`D. 300 kJ `mol^(-1)`

`AB,A_(2)` and `B_(2)` are diatomic molecules. If the bond enthalpies

1.	`AB,A_(2)` and `B_(2)` are diatomic molecules. If the bond enthalpies of `A_(2), AB` and `B_(2)` are in the ratio `1:1:0.5` and the enthalpy of formation of `AB` from `A_(2)` and `B_(2)` is `-100kJ mol^(-1)` , what is the bond enthalpy of `A_(2)` ?A. 400 kJ `mol^(-1)`B. 200 kJ `mol^(-1)`C. 100 kJ `mol^(-1)`D. 300 kJ `mol^(-1)`
Answer» Correct Answer - A

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