Which of the following neutralization reactions will have the same enthalpy change?

I. CH₃COOH + NaOH → CH₃COONa + H₂O

II. HCl + NaOH → NaCl + H₂O

III. HCl + NH₄OH → NH₄Cl + H₂O

IV. HNO₃ + NaOH → NaNO₃ + H₂O

The following gases decolorize bromine water except

The smallest unit of a polymer is a

The process by which protein is converted to amino acid is

The production of biogas from the fermentation of waste materials is an example

Alkanoates can be represented as