The enthalpy of combustion of benzene from the following data will be (i) \[6C(s)+3{{H}_{2}}(g)\to {{C}_{6}}{{H}_{6}}(l);\,\Delta H=+45.9\,kJ\] (ii) \[{{H}_{2}}(g)+\frac{1}{2}{{O}_{2}}(g)\to {{H}_{2}}O(l);\,\Delta H=-285.9\,kJ\] (iii) \[C(s)+{{O}_{2}}(g)\to C{{O}_{2}}(g);\,\Delta H=-393.5\,kJ\]

The enthalpy of combustion of benzene from the following data will be

1.	The enthalpy of combustion of benzene from the following data will be (i) \[6C(s)+3{{H}_{2}}(g)\to {{C}_{6}}{{H}_{6}}(l);\,\Delta H=+45.9\,kJ\] (ii) \[{{H}_{2}}(g)+\frac{1}{2}{{O}_{2}}(g)\to {{H}_{2}}O(l);\,\Delta H=-285.9\,kJ\] (iii) \[C(s)+{{O}_{2}}(g)\to C{{O}_{2}}(g);\,\Delta H=-393.5\,kJ\]
A.	+ 3172.8 kJ
B.	? 1549.2 kJ
C.	? 3172.8 kJ
D.	? 3264.6 kJ
Answer» E.

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The enthalpy of combustion of benzene from the following data will be (i) \[6C(s)+3{{H}_{2}}(g)\to {{C}_{6}}{{H}_{6}}(l);\,\Delta H=+45.9\,kJ\] (ii) \[{{H}_{2}}(g)+\frac{1}{2}{{O}_{2}}(g)\to {{H}_{2}}O(l);\,\Delta H=-285.9\,kJ\] (iii) \[C(s)+{{O}_{2}}(g)\to C{{O}_{2}}(g);\,\Delta H=-393.5\,kJ\]

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