When a precipitation reaction occurs on mixing two aqueous solutions, what is its clearest visible evidence?
Answer and explanation
Correct answer: Formation of an insoluble solid
A precipitation reaction occurs when ions present in two aqueous solutions combine to form a product that is insoluble in water. The product separates as a solid precipitate, often making the mixture cloudy or visibly solid. Therefore option A is correct. Gas evolution indicates another type of reaction, while melting and freezing are physical changes.
Frequently asked questions
What is the correct answer to this question?
Formation of an insoluble solid
Why is this the correct answer?
A precipitation reaction occurs when ions present in two aqueous solutions combine to form a product that is insoluble in water. The product separates as a solid precipitate, often making the mixture cloudy or visibly solid. Therefore option A is correct. Gas evolution indicates another type of reaction, while melting and freezing are physical changes.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Chemical Substances – Nature and Behaviour. Topic: Chemical Reactions and Equations.
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