Question

why does sugar turn black when conc h2so4 is added to it?

Answer 1

When concentrated sulfuric acid ($H_2SO_4$) is added to sugar, the color of sugar gets converted into black due to the formation of carbon.

• When sugar is reacted with concentrated sulfuric acid, the water molecules present in the sugar is removed by the heat produced through the reaction.
• As a result of this reaction fumes of sulfur oxide are released.
• As water molecules are removed from the sugar it leads to the formation of carbon which is the cause for the color change.
• The dehydrated water gets boiled by the heat which is produced during the reaction.
• The chemical equation involved is as follows:

$C_12H_{22}O_{11} + H_2SO_4 \rightarrow 12C+11H_2O+Mixture of acid and water$

Learn more about such concept

A) What justifies sulfuric acid being called the "king of chemicals' ?

B) Why does sugar turn black in contact with concentrated sulfuric acid ?

https://brainly.in/question/7254805

A gas is produced when Conc. H2SO4 is added to solid sodium chloride taken in a test tube. The gas coming out of the delivery tube is passed over a dry blue litmus paper and then over a moist blue litmus paper. What would you observe? Explain reason with the help of a chemical equation.

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Answer 2

Answer:When sugar is reacted with concentrated sulfuric acid, the water molecules present in the sugar is removed by the heat produced through the reaction.

As a result of this reaction fumes of sulfur oxide are released.

As water molecules are removed from the sugar it leads to the formation of carbon which is the cause for the color change.

The dehydrated water gets boiled by the heat which is produced during the reaction.

The chemical equation involved is as follows: