MCQOPTIONS
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MCQOPTIONS
| 1. |
In which of the following reactions does the heat change represent the heat of formation of water [EAMCET 1991] |
| A. | \[2{{H}_{2}}(g)+{{O}_{2}}(g)\to 2{{H}_{2}}O(l);\,\Delta H=-116\,kcal\] |
| B. | \[{{H}_{2}}(g)+\frac{1}{2}{{O}_{2}}(g)\to {{H}_{2}}O(l);\,\Delta H=-58\,kcal\] |
| C. | \[{{H}^{+}}(aq.)+O{{H}^{-}}(aq.)\to 2{{H}_{2}}O(l);\,\Delta H=-13.7\,kcal\] |
| D. | \[{{C}_{2}}{{H}_{2}}(g)+2\frac{1}{2}{{O}_{2}}(g)\to 2C{{O}_{2}}(g)+{{H}_{2}}O(l)\]; \[\Delta H=-310\,kcal\] |
| Answer» C. \[{{H}^{+}}(aq.)+O{{H}^{-}}(aq.)\to 2{{H}_{2}}O(l);\,\Delta H=-13.7\,kcal\] | |