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Glycerol on treatment with potassium hyd...

Glycerol on treatment with potassium hydrogen sulphate yields

A

Acraldehyde

B

Acrylic acid

C

Propane

D

Ethanol

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To solve the question regarding what glycerol yields when treated with potassium hydrogen sulfate, we can follow these steps: ### Step 1: Understand the structure of Glycerol Glycerol, also known as glycerin, has the following structure: - It is a triol, meaning it contains three hydroxyl (-OH) groups. - The molecular formula is C3H8O3. - The structure can be represented as: ``` CH2OH | CHOH | CH2OH ``` ### Step 2: Identify the role of Potassium Hydrogen Sulfate (KHSO4) Potassium hydrogen sulfate is a dehydrating agent. This means that it can remove water (H2O) from glycerol when heated. ### Step 3: Dehydration of Glycerol When glycerol is heated with KHSO4, two water molecules are removed from the glycerol structure. The dehydration reaction can be represented as follows: - Glycerol (C3H8O3) loses 2 water molecules (H2O), resulting in the formation of an intermediate compound: ``` CH2=CH-CHO ``` This compound is known as allyl alcohol (or prop-2-en-1-ol). ### Step 4: Tautomerization The intermediate compound formed is unstable and undergoes tautomerization. In this process, the double bond shifts, and a hydrogen atom is transferred, leading to the formation of: - Acrolein (or acrylic aldehyde), which has the structure: ``` CH2=CH-CHO ``` ### Step 5: Conclusion The final product obtained from the reaction of glycerol with potassium hydrogen sulfate is acrolein (or acrylic aldehyde), which corresponds to option 1 in the question. ### Final Answer: **Acrolein (Acrylic Aldehyde)** ---
To solve the question regarding what glycerol yields when treated with potassium hydrogen sulfate, we can follow these steps: ### Step 1: Understand the structure of Glycerol Glycerol, also known as glycerin, has the following structure: - It is a triol, meaning it contains three hydroxyl (-OH) groups. - The molecular formula is C3H8O3. - The structure can be represented as: ``` ...
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