Why is a precipitate shown with a downward arrow?
Answer and explanation
Correct answer: It separates as an insoluble solid
In chemical equations, a downward arrow is used to mark a precipitate. A precipitate is a solid product that forms from a solution and does not dissolve appreciably in the solvent, so it separates and settles. The symbol therefore communicates the physical state and separation of the product. A gas would be indicated by an upward arrow, while heat and light are not represented by this notation.
Frequently asked questions
What is the correct answer to this question?
It separates as an insoluble solid
Why is this the correct answer?
In chemical equations, a downward arrow is used to mark a precipitate. A precipitate is a solid product that forms from a solution and does not dissolve appreciably in the solvent, so it separates and settles. The symbol therefore communicates the physical state and separation of the product. A gas would be indicated by an upward arrow, while heat and light are not represented by this notation.
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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