What is the correct meaning of upward and downward arrows in a chemical equation?
Answer and explanation
Correct answer: Upward arrow shows gas and downward arrow shows precipitate
In conventional chemical equations, an upward arrow (↑) indicates that a gas is evolved during the reaction. A downward arrow (↓) indicates the formation of an insoluble solid precipitate from a solution. Thus option A correctly assigns both symbols. They do not specifically represent heat or light; those conditions are usually written above the reaction arrow or shown separately.
Frequently asked questions
What is the correct answer to this question?
Upward arrow shows gas and downward arrow shows precipitate
Why is this the correct answer?
In conventional chemical equations, an upward arrow (↑) indicates that a gas is evolved during the reaction. A downward arrow (↓) indicates the formation of an insoluble solid precipitate from a solution. Thus option A correctly assigns both symbols. They do not specifically represent heat or light; those conditions are usually written above the reaction arrow or shown separately.
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.
