Classify the following reaction: H₂CO₃(aq) → H₂O(l) + CO₂(g)

A) synthesis (or combination)
B) decomposition
C) combustion
D) single displacement (replacement)
E) double displacement (replacement)

H2CO3( AQ) gives H2O + CO2

This reaction is decomposition reaction

Decomposition reaction are those reactions in which reactant is breakdown in a form that it gives two or more than two products

All decomposition reaction are endothermic but all endothermic reactions are not decomposition reaction .

Hence, Option B is the correct answer.

vanderwaal's forces of attraction are the electrostatic intermolecular forces that exist in a molecule due to the temporary or permanent dipoles that are developed in a molecule. in , the major intermolecular forces are dipole-dipole interactions as the molecule is polar (bent structure). so the vanderwaal's forces of interaction in between molecules are the permanent dipole-dipole interactions that develop due to the dipole that exists in between the polar h - s bond. the positively charged hydrogen atom is attracted towards the negative end of the dipole that is sulfur of the adjacent molecule. therefore, these forces of attraction are relatively stronger than that of london dispersion forces that exist in non polar molecules.