Acid turns blue litmusA: OrangeB: PinkC: greenD: RedCorrect answer is ...
Acids turn blue litmus red. Litmus paper is used as indicator to check acids and bases.
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Acid turns blue litmusA: OrangeB: PinkC: greenD: RedCorrect answer is ...
Acid turns blue litmus red.
Explanation:
Litmus is a dye obtained from lichens that is commonly used as an indicator of pH. It is available in two forms - blue litmus and red litmus. Blue litmus is used to test for acids and turns red when it comes in contact with an acidic solution.
Acids are substances that donate hydrogen ions (H+) in aqueous solutions. When an acid is added to blue litmus, it reacts with the litmus to form hydronium ions (H3O+) which cause the litmus to turn red. This is because the hydronium ions react with the blue litmus to form a complex that is red in color.
The reaction can be represented as follows:
H+ (aq) + Blue Litmus → Red Litmus
Therefore, if a blue litmus turns red when it comes in contact with a solution, it indicates the presence of an acid in the solution.
Acid turns blue litmusA: OrangeB: PinkC: greenD: RedCorrect answer is ...
Acid turns blue litmus red.
Litmus paper is used to test whether a given solution is acidic or basic. Litmus paper is made by soaking paper in a solution of litmus dye. When exposed to an acid or base, the paper changes color.
Acids have a pH less than 7 and can be identified using litmus paper. When an acid is applied to blue litmus paper, it turns red. This is because the acid reacts with the litmus dye, causing a chemical change that produces a red color.
Some common examples of acids that turn blue litmus paper red include:
- Hydrochloric acid (HCl)
- Sulfuric acid (H2SO4)
- Nitric acid (HNO3)
- Acetic acid (CH3COOH)
In summary, when an acid is applied to blue litmus paper, it turns red due to a chemical reaction between the acid and the litmus dye. This makes blue litmus paper a useful tool for identifying acids in a laboratory or other setting.
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