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........... is a non-electrolyte....

........... is a non-electrolyte.

A

Acetic acid

B

Sugar

C

Calcium

D

Potassium

Text Solution

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The correct Answer is:
**Step-by-Step Solution:** 1. **Understanding Non-Electrolytes**: A non-electrolyte is a substance that does not dissociate into ions when dissolved in water. This means it does not conduct electricity in an aqueous solution. 2. **Identifying Examples**: Common examples of non-electrolytes include substances like sugar (sucrose, C12H22O11) and alcohols. These substances remain intact and do not break down into ions. 3. **Differentiating Electrolytes and Non-Electrolytes**: Electrolytes are substances that dissociate into ions in solution, allowing them to conduct electricity. For example, acetic acid is a weak electrolyte because it partially dissociates into ions. 4. **Analyzing Specific Substances**: - **Acetic Acid**: Dissociates into ions in aqueous solution, making it an electrolyte. - **Sugar (Sucrose)**: Does not dissociate into ions in aqueous solution, making it a non-electrolyte. - **Calcium and Potassium**: These metals can conduct electricity when in molten form or when they dissociate into ions, thus they are classified as electrolytes. 5. **Conclusion**: Based on the analysis, the correct answer to the question "........... is a non-electrolyte" is **sugar (sucrose)**. ---
**Step-by-Step Solution:** 1. **Understanding Non-Electrolytes**: A non-electrolyte is a substance that does not dissociate into ions when dissolved in water. This means it does not conduct electricity in an aqueous solution. 2. **Identifying Examples**: Common examples of non-electrolytes include substances like sugar (sucrose, C12H22O11) and alcohols. These substances remain intact and do not break down into ions. 3. **Differentiating Electrolytes and Non-Electrolytes**: Electrolytes are substances that dissociate into ions in solution, allowing them to conduct electricity. For example, acetic acid is a weak electrolyte because it partially dissociates into ions. ...
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Knowledge Check

  • Which of these will act as a non-electrolyte?

    A
    Liquid carbon tetrachloride
    B
    Acetic acid
    C
    Sodium hydroxide aqueous solution
    D
    Potassium chloride aqueous solution

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    The molal depression constant for water is 1.86^(@)C . The freezing point of a 0.05-molal solution of a non-electrolyte in water is

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