Final answer:
The predicted reactions are: (a) an elimination reaction for (CH₃)₃CCl forming an alkene, (b) a substitution (esterification) reaction for acetic acid and methanol forming an ester, and (c) an addition reaction for formaldehyde reacting with water to form a diol.
Step-by-step explanation:
The reactions in the question can be categorized as addition, substitution, or elimination reactions:
- a. (CH₃)₃CCl → (CH₃)₂C=CH₂ + HCl is an elimination reaction because the tertiary butyl chloride is losing a molecule of HCl to form an alkene.
- b. CH₃COOH + CH₃OH → CH₃COCH₃ + H₂O is an esterification reaction, which is a type of substitution reaction where an alcohol substitutes for the hydrogen in a carboxylic acid to form an ester and water.
- c. H₂C=O + H₂O → H₂C(OH)₂ is an addition reaction in which water adds to formaldehyde, converting the C=O double bond into a C(OH)₂ group.