BIOMOLECULES AND ENZYMES

Detailed explanation-1: -The rate of dehydration then accelerates as the acid heats up because the reaction is exothermic. As the sugar molecules are stripped of water, the heat generated turns the water into steam which then expands the remaining carbon into a porous, smoking, black column.

Detailed explanation-2: -When table sugar and concentrated sulfuric acid are combined, an exothermic reaction occurs that produces vaporized water and carbon dioxide. The vaporized water and carbon dioxide are responsible for the expansion of the mixture inside the container.

Detailed explanation-3: -The sulfuric acid removes water from the sugar in a highly exothermic reaction, releasing heat, steam, and sulfur oxide fumes.

Detailed explanation-4: -Concentrated sulphuric acid is used for the dehydration of alcohol because sulphuric acid is a strong oxidizing agent. It also has a strong affinity toward water thus absorbing water. When concentrated sulphuric acid reacts with alcohol, it oxides some alcohol to carbon dioxide and reduces itself to sulphur dioxide.

Detailed explanation-5: -Hence, Reaction of concentrated Sulphuric acid and sugar results in the formation of a black spongy mass of carbon known as sugar charcoal. C 12 H 22 O 11 ( Sugar ) → H 2 SO 4 ( Conc .