Published by:
CGP EDU Academic Team
Published on: September 12, 2026
When conc. 
is heated with 
, the acid is converted to
Text Solution
Verified by ExpertsThe correct answer is:
A
Step 1: The reaction involves concentrated sulfuric acid (H₂SO₄) being heated with phosphorus pentoxide (P₂O₅).
Step 2: The primary reaction is the dehydration of sulfuric acid, which can produce sulfur dioxide (SO₂) and sulfur trioxide (SO₃) when sulfuric acid is subjected to higher temperatures in the presence of P₂O₅.
Step 3: The products are a mixture of sulfur dioxide and sulfur trioxide rather than a single product, making option A the correct one.
Therefore, the correct answer is A.
Step 2: The primary reaction is the dehydration of sulfuric acid, which can produce sulfur dioxide (SO₂) and sulfur trioxide (SO₃) when sulfuric acid is subjected to higher temperatures in the presence of P₂O₅.
Step 3: The products are a mixture of sulfur dioxide and sulfur trioxide rather than a single product, making option A the correct one.
Therefore, the correct answer is A.
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