NaCl (sodium chloride) is a NEUTRAL salt. It is made from a strong acid (HCl) and a strong base (NaOH), thus a solution of this salt is neutral. When placed in water it hydrolyzes to produce HCl and NaOH.
Sodium chloride solution is neutral.
- sodium chloride is not an acid - in an acid solution the blue litmus paper become red
Litmus paper is a mixture of dyes that change color depending on the acidity or alkalinity of a solution. When exposed to sodium chloride, which is a neutral salt, litmus paper does not undergo a chemical reaction. It remains unchanged in the presence of sodium chloride.
Red litmus paper will not change color in the presence of sodium chloride. Sodium chloride is a neutral compound and does not have acidic or basic properties that would cause a color change in red litmus paper.
Sodium hydroxide is a strong base, so it will turn blue litmus paper to red. This color change is due to the alkaline nature of sodium hydroxide which reacts with the blue litmus paper to change its color.
Litmus paper turns red when exposed to an acidic solution and blue when exposed to a basic solution. Common salt (sodium chloride) is neutral, so it does not significantly change the color of litmus paper.
Hydrogen chloride turns damp blue litmus paper red.
Dry blue litmus paper does not change color in the presence of hydrogen chloride gas because it is already in its acidic form. Hydrongen chloride is an acidic gas that does not cause a reaction with blue litmus paper. The blue color of the litmus paper is retained because there is no alkali to neutralize in order to cause a color change.
Boiling the water and ferric chloride mixture will not change the color of litmus paper, as litmus paper is not sensitive to the presence of ferric chloride. Litmus paper is typically used to test for acidity or basicity in a solution.
a)sulfur dioxide b)hydrogen chloride c)potassium sulfate d)slaked lime
Sodium hydroxide turns red litmus paper blue.
Sodium carbonate will turn red litmus paper blue. This is because sodium carbonate is a basic compound and can neutralize the acidity in the red litmus paper, causing it to change color.