An indicator is a substance that changes color in the presence of an acid or alkali. Common indicators include litmus paper (blue for alkaline, red for acidic), phenolphthalein (colorless in acidic solutions, pink in alkaline solutions), and universal indicator solution (multiple colors to indicate pH level).
Universal indicator turns shades of blue or purple in an alkali.
Universal indicator would be dark blue or purple in a strong alkali.
Universal indicator will turn purple or blue when mixed with a weak alkali.
Universal indicator turns deep blue or violet when mixed with a strong alkali.
Acid + alkali ---> Salt + Water for exampleSodium Hydroxide + Hydrochloric Acid ---> Sodium Chloride + Water
What are the names of plants that can be used as indicator of acid and alkali
Litmus paper is an indicator that changes color in acid and alkali solutions. In an acid solution, litmus paper turns red, while in an alkali solution, it turns blue.
The pH of a solution.
it is universal indicator with mixture of alkali
Universal indicator will turn green when an acid is mixed with an alkali. This green color indicates a neutral pH level which is achieved when the acid and alkali have neutralized each other.
Universal indicator changes colour in acids and alkalis. Its colour shows the strength of an acid or alkali. strong acid= redweak acid= orange / yellowneutral= greenweak alkali= turquoise / bluestrong alkali= deep blue / purple The strength of an acid or alkali is shown on the pH scale of numbers.
sugar is a acid when dipped or mixed in universal indicator...............
no it doesn't, it simply just turns it into an indicator and has not neutralised it.
Universal indicator changes colour in acids and alkalis. Its colour shows the strength of an acid or alkali. strong acid= redweak acid= orange / yellowneutral= greenweak alkali= turquoise / bluestrong alkali= deep blue / purple The strength of an acid or alkali is shown on the pH scale of numbers.
The color does not change unless an indicator such as litmus or phenolphthalein is being used. If litmus the color change is blue to red If phenolphthalein the change is red to colorless
Methyl Red
Neutrilisation is when you mix an acid and an alkali together. this, on a universal indicator, is 7 or green.