A compound X on heating with excess concentration. sulphuric acid at 443 K gives an unsaturated compound Y, X also reacts with sodium metal to evolve a colourless gas Z .Identify X , Y and Z .Write the equation of the chemical reaction of formation of Yand also write the role of sulphuric acid in the reaction.
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☯ Question: ☯
A compound 'X' on heating with excess conc. sulphuric acid at 443 K gives an unsaturated compound 'Y', 'X' also reacts with sodium metal to evolve a colourless gas 'Z' .Identify 'X' , 'Y' and 'Z' .Write the equation of the chemical reaction of formation of 'Y' and also write the role of sulphuric acid in the reaction.
☯ Answer : ☯
When Ethanol is heated with concentrated Sulphuric acid, Ethene is collected over water. This Process is also known as ,"Dehydration of Ethanol".
Reaction with Ethanol :
Thus, In this Question, It is given that A compound 'X' on heating with excess concentrated h2so4 acid at 443k gives an unsaturated compound y. X also reacts with na metal to evolve a colorless gas z .
Required Compound X is (Ethanol) or C2H50H
Required Unsaturated Compound Y is Ethene or C2H4
Required Colourless Gas Z is H2 ( Hydrogen gas)
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Things To Remember !
⏪ Ethanol is insoluble in water and while all organic Compound insoluble in water!
⏪ Ethanol is used as fuel along with Petrol . Generally it is used in cars.
⏪ Ethanol is used as Drinking (Wine), it's Contains Whiskey (35%), Beer ( 10% to 20%) and Wine (6%)
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Concentrated sulphuric acid acts as a dehydrating agent in this reaction and removes a molecule of water.
Note: When Ethanol (x) reacts with sodium colorless Hydrogen gas (z) is evolved.
CH3CH2OH + Na--- C2H5ONa + H2
a) Ethanol
b) Ethene
c) H2