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ICSE Class 9 Answered

when concentrated sulphuric acid is added to a test tube containing a thick paste of sugar a black hole in sponge mass is formed .give reason?
Asked by manikondavasavi19431 | 05 Oct, 2019, 08:22: PM
answered-by-expert Expert Answer
Being a dehydrating agent, sulphuric acid evaporates all the water formed during the reaction of its with sugar.
This dehydration turns white sugar into black carbon.
The chemical reaction occurs as follows:
 
C12H22O11(s) → 11 H2O(g) ↑ + 12 C(s)
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