Which one of the following is an example of solution liquid in solid?

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Which one of the following is an example of solution liquid in solid? Answer: Dental filling

A common example of a liquid-in-solid solution is dental filling, where liquid mercury is dissolved in a powdered solid alloy of silver, tin, and copper. Another example is hydrated salts, where a liquid component is incorporated into the solid crystal structure.

Question context

This question is part of 📚 General Knowledge within the broader 🌐 Current Affairs & GK subject and appears in the ETEA Educational Testing and Evaluation Agency preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.