Question

Give reason for the following
Sugar gets charred on addition of concentrated sulphuric acid​

Answer 1

Answer:

First things first , concentrated sulphuric acid is a strong dehydrating agent . So it will remove the elements of water that is H and O in the ratio 2 : 1 from any given compound .

Basically , sugar has the formula C₁₂H₂₂O₁₁ and on reacting with concentrated sulphuric acid evolves water vapour and black carbon .

Hence the sugar gets charred to form black spongy mass of carbon .

Explanation:

After the reaction heat is also evolved along with water vapour . The carbon solid mass will be left behind and hence sugar is said to be charred .

It is a chemical reaction after all with the formation of new products in the form of carbon and steam .

Answer 2

The sulphuric acid removes water from the sugar from highly exothermic reaction, releasing heat , steam and sulphur oxides fumes

Aside from the sulfurous odour the reaction smell a lot like caramel

The white sugar turned into carbonized tube that pushes itself out of the beaker