1.

\[\Delta H{{{}^\circ }_{f}}\] (298K) of methanol is given by the chemical equation             [AIIMS 2005]

A.                 \[C{{H}_{4}}(g)+1/2{{O}_{2}}(g)\to C{{H}_{3}}OH(g)\]
B.                 C (graphite) \[+1/2{{O}_{2}}(g)+2{{H}_{2}}(g)\to C{{H}_{3}}OH(l)\]
C.                 C (diamond) \[+1/2{{O}_{2}}(g)+2{{H}_{2}}(g)\to C{{H}_{3}}OH(l)\]
D.                 \[CO(g)+2{{H}_{2}}(g)\to C{{H}_{3}}OH(l)\]
Answer» C.                 C (diamond) \[+1/2{{O}_{2}}(g)+2{{H}_{2}}(g)\to C{{H}_{3}}OH(l)\]


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