What does a downward arrow (↓) indicate in a chemical equation?
Answer and explanation
Correct answer: Formation of a precipitate
A downward arrow (↓) in a chemical equation indicates that an insoluble solid has formed and settled out of the solution. This solid is called a precipitate, so option A is correct. An upward arrow (↑), where used, indicates gas evolution; heat is shown by reaction conditions, and an aqueous state is represented by (aq), not by a downward arrow.
Frequently asked questions
What is the correct answer to this question?
Formation of a precipitate
Why is this the correct answer?
A downward arrow (↓) in a chemical equation indicates that an insoluble solid has formed and settled out of the solution. This solid is called a precipitate, so option A is correct. An upward arrow (↑), where used, indicates gas evolution; heat is shown by reaction conditions, and an aqueous state is represented by (aq), not by a downward arrow.
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.
