Heat of combustion \[\Delta H\] of \[C{{H}_{4}},\,{{C}_{2}}{{H}_{6}},\,{{C}_{2}}{{H}_{4}}\] and \[{{C}_{2}}{{H}_{2}}\] gases are ? 212.8, ? 373.0, ? 337.0 and ? 310.5 kcal respectively at the same temperature. The best fuel among these gases is

Heat of combustion \[\Delta H\] of \[C{{H}_{4}},\,{{C}_{2}}{{H}_{6}},\

1.	Heat of combustion \[\Delta H\] of \[C{{H}_{4}},\,{{C}_{2}}{{H}_{6}},\,{{C}_{2}}{{H}_{4}}\] and \[{{C}_{2}}{{H}_{2}}\] gases are ? 212.8, ? 373.0, ? 337.0 and ? 310.5 kcal respectively at the same temperature. The best fuel among these gases is
A.	\[C{{H}_{4}}\]
B.	\[{{C}_{2}}{{H}_{6}}\]
C.	\[{{C}_{2}}{{H}_{4}}\]
D.	\[{{C}_{2}}{{H}_{2}}\]
Answer» B. \[{{C}_{2}}{{H}_{6}}\]

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Heat of combustion \[\Delta H\] of \[C{{H}_{4}},\,{{C}_{2}}{{H}_{6}},\,{{C}_{2}}{{H}_{4}}\] and \[{{C}_{2}}{{H}_{2}}\] gases are ? 212.8, ? 373.0, ? 337.0 and ? 310.5 kcal respectively at the same temperature. The best fuel among these gases is

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