Question:
The true statements pertaining to H\(_2\)SO\(_4\) among the following are:
I. High volatility
II. Acts as reducing agent
III. Strong acidic character
IV. Strong affinity for water
The true statements pertaining to H\(_2\)SO\(_4\) among the following are:
I. High volatility
II. Acts as reducing agent
III. Strong acidic character
IV. Strong affinity for water
I. High volatility
II. Acts as reducing agent
III. Strong acidic character
IV. Strong affinity for water
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Concentrated H\(_2\)SO\(_4\) is a strong dehydrating and oxidizing agent, not reducing agent.
Updated On: Jun 20, 2026
- I, II
- III, IV
- I, III
- II, IV
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The Correct Option is B
Solution and Explanation
Step 1: Understand nature of H\(_2\)SO\(_4\).
Sulfuric acid is a strong mineral acid with low volatility and strong dehydrating nature. It is highly acidic in aqueous solution.
Step 2: Analyze statement I (volatility).
H\(_2\)SO\(_4\) is non-volatile due to strong intermolecular hydrogen bonding and high boiling point. Hence statement I is incorrect.
Step 3: Analyze statement II (reducing agent).
Concentrated H\(_2\)SO\(_4\) acts as an oxidizing agent, not reducing agent. Hence statement II is incorrect.
Step 4: Analyze statement III (acidic character).
It is a strong acid that completely dissociates in water (first dissociation). Hence statement III is correct.
Step 5: Analyze statement IV (affinity for water).
H\(_2\)SO\(_4\) has strong affinity for water due to hydration and exothermic dissolution, making it a strong dehydrating agent. Hence correct.
Step 6: Final conclusion.
Only statements III and IV are correct.
Final Answer: \[ \boxed{\text{III, IV}} \]
Sulfuric acid is a strong mineral acid with low volatility and strong dehydrating nature. It is highly acidic in aqueous solution.
Step 2: Analyze statement I (volatility).
H\(_2\)SO\(_4\) is non-volatile due to strong intermolecular hydrogen bonding and high boiling point. Hence statement I is incorrect.
Step 3: Analyze statement II (reducing agent).
Concentrated H\(_2\)SO\(_4\) acts as an oxidizing agent, not reducing agent. Hence statement II is incorrect.
Step 4: Analyze statement III (acidic character).
It is a strong acid that completely dissociates in water (first dissociation). Hence statement III is correct.
Step 5: Analyze statement IV (affinity for water).
H\(_2\)SO\(_4\) has strong affinity for water due to hydration and exothermic dissolution, making it a strong dehydrating agent. Hence correct.
Step 6: Final conclusion.
Only statements III and IV are correct.
Final Answer: \[ \boxed{\text{III, IV}} \]
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