Question:
Aqueous solution of which of the following does not act as electrolyte?
Aqueous solution of which of the following does not act as electrolyte?
Show Hint
To identify non-electrolytes, look for molecular covalent compounds that are not acids or bases.
Common examples include sugars (like glucose, sucrose), alcohols (like ethanol), and urea.
Ionic salts are almost always strong electrolytes.
Common examples include sugars (like glucose, sucrose), alcohols (like ethanol), and urea.
Ionic salts are almost always strong electrolytes.
Updated On: Jul 1, 2026
- Urea
- Copper Sulphate
- Silver Nitrate
- Sodium Chloride
Show Solution
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The Correct Option is A
Solution and Explanation
Step 1: Understanding the Question:
We need to identify which of the given substances, when dissolved in water, does not form an electrically conducting solution.
Such a substance is known as a non-electrolyte.
Step 2: Key Formula or Approach:
An electrolyte is a substance that produces ions when dissolved in a solvent (like water), allowing the solution to conduct electricity.
-
Electrolytes are typically ionic compounds (salts), acids, and bases.
-
Non-electrolytes are typically molecular covalent compounds that do not ionize in solution, such as sugars, alcohols, and urea.
Step 3: Detailed Explanation:
Let's analyze each option:
-
(A) Urea \((CO(NH_2)_2)\): Urea is a covalent organic molecule. When it dissolves in water, it disperses as neutral molecules. It does not dissociate into ions. Therefore, its aqueous solution does not conduct electricity, making it a non-electrolyte.
-
(B) Copper Sulphate \((CuSO_4)\): This is an ionic salt. It dissolves in water and dissociates into mobile ions: \(Cu^{2+}(\text{aq})\) and \(SO_4^{2-}(\text{aq})\). It is a strong electrolyte.
-
(C) Silver Nitrate (AgNO\(_3\)): This is an ionic salt. It dissolves and dissociates into Ag\(^+\)(aq) and NO\(_3^-\)(aq) ions. It is a strong electrolyte.
-
(D) Sodium Chloride (NaCl): This is a common ionic salt that dissolves and dissociates completely into Na\(^+\)(aq) and Cl\(^-\)(aq) ions. It is a strong electrolyte.
Step 4: Final Answer:
The aqueous solution of Urea does not act as an electrolyte.
We need to identify which of the given substances, when dissolved in water, does not form an electrically conducting solution.
Such a substance is known as a non-electrolyte.
Step 2: Key Formula or Approach:
An electrolyte is a substance that produces ions when dissolved in a solvent (like water), allowing the solution to conduct electricity.
-
Electrolytes are typically ionic compounds (salts), acids, and bases.
-
Non-electrolytes are typically molecular covalent compounds that do not ionize in solution, such as sugars, alcohols, and urea.
Step 3: Detailed Explanation:
Let's analyze each option:
-
(A) Urea \((CO(NH_2)_2)\): Urea is a covalent organic molecule. When it dissolves in water, it disperses as neutral molecules. It does not dissociate into ions. Therefore, its aqueous solution does not conduct electricity, making it a non-electrolyte.
-
(B) Copper Sulphate \((CuSO_4)\): This is an ionic salt. It dissolves in water and dissociates into mobile ions: \(Cu^{2+}(\text{aq})\) and \(SO_4^{2-}(\text{aq})\). It is a strong electrolyte.
-
(C) Silver Nitrate (AgNO\(_3\)): This is an ionic salt. It dissolves and dissociates into Ag\(^+\)(aq) and NO\(_3^-\)(aq) ions. It is a strong electrolyte.
-
(D) Sodium Chloride (NaCl): This is a common ionic salt that dissolves and dissociates completely into Na\(^+\)(aq) and Cl\(^-\)(aq) ions. It is a strong electrolyte.
Step 4: Final Answer:
The aqueous solution of Urea does not act as an electrolyte.
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