A) \[{{\text{C}}_{\text{6}}}{{\text{H}}_{\text{12}}}{{\text{O}}_{\text{6}}}\text{+}\,\text{6}{{\text{0}}_{\text{2}}}\to \text{6C}{{\text{O}}_{\text{2}}}\text{+}\,\text{6}{{\text{H}}_{\text{2}}}\text{+}\,\text{673}\,\text{kcal}\]
B) \[{{\text{C}}_{\text{6}}}{{\text{H}}_{\text{12}}}{{\text{O}}_{\text{6}}}\xrightarrow{{}}\text{2}{{\text{C}}_{\text{2}}}{{\text{H}}_{\text{5}}}\text{OH+}\,\text{2C}{{\text{O}}_{\text{2}}}\text{+}21\,\text{kcal}\]
C) \[6C{{O}_{2}}+12{{H}_{2}}O\to {{\text{C}}_{6}}{{\text{H}}_{12}}{{\text{O}}_{\text{2}}}+{{60}_{2}}\,\]
D) \[\text{6C}{{\text{O}}_{\text{2}}}\text{+6}{{\text{H}}_{\text{2}}}\text{O}\frac{\text{Light}}{\text{Chlorophyll}}{{\text{C}}_{\text{6}}}{{\text{H}}_{\text{12}}}{{\text{O}}_{\text{6}}}\text{+6}{{\text{0}}_{\text{2}}}\,\]
Correct Answer: B
Solution :
Incomplete breakdown of organic substances without using oxygen as an oxidant takes place during fermentation. Fermentation is represented by the following equation. \[\underset{\text{Glucose}}{\mathop{{{\text{C}}_{\text{6}}}{{\text{H}}_{\text{12}}}{{\text{O}}_{\text{6}}}}}\,\xrightarrow[\text{Zymase}]{\text{Yeast}}\underset{\begin{smallmatrix} \text{Ehtyl} \\ \text{alcohol} \end{smallmatrix}}{\mathop{\text{2}{{\text{C}}_{\text{2}}}{{\text{H}}_{\text{5}}}\text{OH}\,\text{+}\,\text{2C}{{\text{O}}_{\text{2}}}}}\,+\,\underset{\text{energy}}{\mathop{\text{21}\,\text{kcal}}}\,\] Fermentation is mainly of two types Alcoholic fermentation-The above equation shows alcoholic fermentation. Lactic add fermentation- \[\begin{align} & \text{2C}{{\text{H}}_{\text{3}}}\text{COCOOH}\,\text{+}\,\text{2NAD}{{\text{H}}_{\text{2}}}\xrightarrow[{}]{\text{Lactic}\,\text{dehydrogenase}} \\ & \text{C}{{\text{H}}_{\text{3}}}\text{CHOHCOOH}\,\text{+}\,\text{2NAD} \\ \end{align}\]\[{{H}_{2}}O\] and \[C{{O}_{2}}\]are not produced in lactic acid fermentation.
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