Name the compound formed whene than olisheatedin excess of
concentrated sulphuric acid at 443K. Also write the chemica linvolved in
it.
Answers
Explanation:
Compound X is ethanol
Compound Y is ethene
Compound Z is hydrogen gas.
C
2
H
5
OH
sulphuric acid
C
2
H
4
+H
2
O
Hot concentrated sulphuric acid is a strong dehydrating agent. It reacts with ethanol to give ethene by removing water.
C
2
H
5
OH+Na→C
2
H
5
ONa+H
2
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Name the compound formed when ethanol is heated is excess of conc. sulphuric acid at 443 K.
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asked Jun 5, 2018 in Class X Science by priya12 (-12,631 points)
Name the compound formed when ethanol is heated is excess of conc. sulphuric acid at 443 K. Also write the chemical equation of the reaction stating the role of cone. sulphuric acid in it. What would happen if hydrogen is added to the product of this reaction in the presence of catalysts such as palladium or nickel ?
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answered Jun 5, 2018 by aditya23 (-2,145 points)
When ethanol is heated with excess of concentrated sulphuric acid at 170" C (443K) it gets dehydrated to form ethene (an unsaturated hydrocarbon). CH3-CH2OH (ethanol) → CH2=CH2 (dehydration) + H20 (water) 1) In this reaction, concentrated sulphuric acid acts as a dehydrating agent which removes water molecule from the ethanol molecule. 2) If hydrogen is added to the ethene (product of above reaction) in the presence of catalysts like palladium or nickel then one atom of H adds to each carbon atom of ethene due to which the double bond opens up to form a single bond in ethane.