Question

2.7 What is the action of concentrated H2SO4 on: ii) cane sugar​

Answer 1

Explanation:

Addition of conc. sulphric acid to cane sugar : conc. sulphuric acid acts as a dehydrating agent, thereby removing water (in the form of steam) and leaving behind black spongy mass of carbon.

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Answer 2

The sulphuric acid will dry out the cane sugar.

• When the concentrated sulphuric acid is poured on the cane sugar, it turns into a spongy mass of carbon.
• The spongy mass of carbon is called sugar charcoal.
• The concentrated sulphuric acid acts as a dehydrating agent which removes the hydration from the sugar.
• The reaction involved is:

$C_{12}H_{22}O_{11}$ → $12C+11H_{2}O$