The following table is related to an Industrial process of an acid.

Identify (a), (b) and (c).

Define the following terms:

(a) Molar volume

(b) Normal salt

Complete and balance the following equations:

(a) Al₂O₃ + 2NaOH ⟶

(b) C₂H₅COONa + NaOH $\overset{\text{Δ}}{\underset{\text{Cao}}{\longrightarrow}}$

(c) C₂H₄Br₂ + alcoholic KOH $\overset{\text{Δ}}{\longrightarrow}$

Choose the organic compound from the list given below to answer the following questions:

$\boxed{\text{Ethene, Ethanoic acid, Ethanol, Methanal}}$

(a) The compound which does not have a double bond in its structure.

(b) The compound which in its pure form turns into an ice like solid on cooling.

(c) The compound which is used for artificial ripening of fruits.