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Molecular Formula

Write the nam...

Question

Write the name and the structural formula of the compound formed when ethanol is heated at 443 K with excess of conc. $H_{2} S O_{4}$ . State the role of conc. $H_{2} S O_{4}$ in the reaction. Write chemical equation for the reaction.

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Solution

When ethanol is heated at 443K with excess of conc. $H_{2} S O_{4}$ , ethene ( $C H_{2} = C H_{2}$ ) is formed. This is a dehydration reaction where $H_{2} S O_{4}$ acts as a dehydrating agent by removing water and forming ethene.

$C H_{3} C H_{2} O H c o n c . H_{2} S O_{4} - ------ \to △, 443 K C H_{2} = C H_{2} + H_{2} O$

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Q. Write the structural formula of ethanol. What happens when it is heated with excess of conc.

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Q. Question 39
Ethene is formed when ethanol at 443k is heated with an excess of concentrated sulphuric acid. What is the role of sulphuric acid in this reaction? Write the balanced chemical equation for this reaction.

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