List of top Fundamentals of Biological Engineering Questions on Stoichiometry of growth and product formation asked in GATE BT

By elemental analysis of a biomass sample, it was found that the cells in the given sample are composed of (by weight) C=50%, H=8%, O=20%, N=10% and ash content=12%. Which of the following is the correct empirical formula of the ash-free cells, normalized with respect to Nitrogen?

A bacterium produces acetic acid from ethanol as per the following reaction \(2 CH_3CH_2OH + 2O_2 \rightarrow 2CH_3COOH + 2H_2O\).
The maximum thermodynamic yield of acetic acid from ethanol in g g\(^{-1}\) (rounded to two decimals) is \(\underline{\hspace{1cm}}\).