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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).
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What colour does universal indicator go in a alkali?
Universal indicator turns shades of blue or purple in an alkali.
What colour would universal indicator be in a strong alkali?
Universal indicator would be dark blue or purple in a strong alkali.
What colour will universal indicator turn when mixed with a weak alkali?
Universal indicator will turn purple or blue when mixed with a weak alkali.
What coulour does universal indicator turn when mixed with strong alkali?
Universal indicator turns deep blue or violet when mixed with a strong alkali.
What happens when an acid reacts with an alkali?
Acid + alkali ---> Salt + Water for exampleSodium Hydroxide + Hydrochloric Acid ---> Sodium Chloride + Water
What are the names of plants that can be used as indicators of acid and alkali?
What are the names of plants that can be used as indicator of acid and alkali
One indicator that changes colour in an acid and alkali solution?
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.
How does a acid-alkali indicator indicates?
The pH of a solution.
What is the material used to remove an indicator from a neutralized solution how does this work?
it is universal indicator with mixture of alkali
What colour will universal indicator turn when acid is mixed with 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.
What is indicat?
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.
Is sugar acid or alkali?
sugar is a acid when dipped or mixed in universal indicator...............
Does an alkali substance neutralize an acid?
no it doesn't, it simply just turns it into an indicator and has not neutralised it.
What is universal indicater?
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.
How does the color change when a strong acid is added an alkali to neutralise?
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
What indicator would be suitable for a reaction between a strong acid and a weak alkali?
Methyl Red
What is neutrilisation?
Neutrilisation is when you mix an acid and an alkali together. this, on a universal indicator, is 7 or green.
