Given below are two statements:}
Statement I:}
A mixture of \(C_{12}H_{22}O_{11}\) (sugar) and \(NaCl\) can be separated by dissolving sugar in alcohol, due to differential solubility.
Statement II:}
Rose essence from rose petals is separated by steam distillation due to its high volatility and insolubility in \(H_2O\).
Choose the correct answer.
- Both Statement I and Statement II are true
- Both Statement I and Statement II are false
- Statement I is true but Statement II is false
- Statement I is false but Statement II is true
The Correct Option is D
Solution and Explanation
The question evaluates two statements regarding methods for separating chemical mixtures based on their physical and chemical properties.
Step 2: Detailed Explanation:
Analysis of Statement I:
Sugar (sucrose) is an organic covalent compound that is soluble in ethanol (alcohol) due to the presence of multiple -OH groups.
NaCl (sodium chloride) is an ionic compound. While highly soluble in water, it is practically insoluble in ethanol because alcohol has a lower dielectric constant and cannot effectively solvate the ions.
Therefore, adding alcohol to the solid mixture dissolves the sugar, leaving NaCl as a residue. Filtration then separates them. This statement is True.
Analysis of Statement II:
Steam distillation is used to separate substances that are steam volatile and immiscible (insoluble) in water.
Rose essence (essential oils) contains volatile organic components that are insoluble in water but can be carried over by steam at temperatures lower than their normal boiling points. This prevents decomposition of the delicate aroma compounds. This statement is True.
Step 3: Final Answer:
Both statements I and II are correct.
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