When ethanol is heated with excess of concentrated sulphuric acid at $170^{o} C$ , it gets converted to ethene. In this reaction, concentrated sulphuric acid acts as:

Oxidising agent

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Catalyst

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Dehydrating agent

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Reducing agent

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Solution

The correct option is C Dehydrating agent
Concentrated Sulphuric acid behaves like a dehydrating agent as it extracts water molecules from the ethanol and transforms it to ethene.
$C H_{3} C H_{2} O H Ethyl alcohol conc. H_{2} S O_{4} - --------- \to High temperature C H_{2} = C H_{2} Ethene + H_{2} O$

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Similar questions

When ethanol is heated with concentrated sulphuric acid at $170^{\circ} C,$ it gets converted into ethene. In this reaction, concentrated sulphuric acid acts as :
(a) oxidising agent (b) catalyst (c) dehydrating agent (d) reducing agent

Q. Ethene is formed when ethanol at 443 K is heated with an excess of concentrated sulphuric acid. The role of sulphuric acid in this reaction is :

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.

When ethanol is heated at 443 K with excess concentrated sulphuric acid it gives:

Q. (a) What happens when ethanol reacts with ethanoic acid in the presence of a little of concentrated sulphuric acid? Write equation of the reaction involved.
(b) What happens when ethanol is heated with concentrated sulphuric acid at 170°C? Write the equation of the reaction which takes place.

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When ethanol is heated with excess of concentrated sulphuric acid at 170 oC, it gets converted to ethene. In this reaction, concentrated sulphuric acid acts as:

The correct option is C Dehydrating agentConcentrated Sulphuric acid behaves like a dehydrating agent as it extracts water molecules from the ethanol and transforms it to ethene. CH3CH2OHEthyl alcoholconc. H2SO4−−−−−−−−−−→High temperatureCH2=CH2Ethene+H2O

When ethanol is heated with excess of concentrated sulphuric acid at $170^{o} C$ , it gets converted to ethene. In this reaction, concentrated sulphuric acid acts as: