If glucose is heated with concentration tetraoxosulphate (VI) acid, it will be dehydrated to
carbon
carbon (IV) oxide
ethene
ethanol
Explanation
Video Explanation
Post your Contribution
Discussions (9)
The dehydration of sugar (sucrose), C12H22O11, to sugar charcoal (Carbon).
( + Conc. H2SO4) C12H22O11(s) → 12C(s) + 11H2O(l);
The dehydration of ethanol, C2H5OH, to ethene gas, C2H4.
( + Conc. H2SO4) C2H5OH(l) → C2H4(g) + H2O(l)
The dehydration of ethanedioc acid, HOOC-COOH, to carbon(IV) oxide, CO2, and Carbon(II) oxide, CO.
( + Conc. H2SO4) HOOC-COOH(s) → CO2(g) + CO(g) + H2O(l)
logically, H2SO4 is a dehydrating agent and glucose is a sugar, as sugars have the general formula as Cn(H2O)n
a good dehydrating Agent would just simply remove the molecules of water leaving behind carbon
all the best
smarty
Drying is a physical phenomenon that removes the water molecule while allowing the substance to keep its integrity. The basic principle of drying usually involves the absorption of the water molecule into the body of the drying agent. This is evident in the use of anhydrous calcium chloride as drying agent for the laboratory preparation of oxygen. Using the sun to vapourise water from wet salt crystals is another example of drying.
Dehydration on the other hand, affects the chemical composition
logically, H2SO4¾ is a dehydrating agent and glucose is a sugar, as sugars have the general formula as Cn(H2O)n
a good dehydrating Agent would just simply remove the molecules of water leaving behind carbon
all the best
smarty
yes dehydration affect chemical composition and carbon was not use i was tetraoxosulphate that was used
it is what all carbohydrate does
i.e dehydration. using CONCETRATED H2so4 gives out black resdue of carbon!!!
