43. What is an acid ? Name any two acids. How can you test the presence of an acid in substance
Answers
Answer:
acid is a substance which produces h+ ions on reacting with water. The two acids are HCL and H2SO4. To test the presence of acid we should use litmus paper. The acid will convert blue litmus into red.
Answer:
What is an acid ?
Ans:- Acid, any substance that in water solution tastes sour, changes the colour of certain indicators (e.g., reddens blue litmus paper), reacts with some metals (e.g., iron) to liberate hydrogen, reacts with bases to form salts, and promotes certain chemical reactions (acid catalysis).
Explanation:
i) Test with litmus paper: Place a drop of the given substance on a moist litmus paper. If the colour changes to red, it is an acid. ii) Test with metals: Acids react with metals to produce salt and hydrogen gas. So if the given substance gives a gas with metals and the gas burns with explosion, then it is acid