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An alkali usually turns purple or blue when in universal indicator. This is because universal indicator contains a mixture of different pH indicators that change color at various pH levels, with blue or purple indicating a high pH level associated with alkalis.

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1y ago

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Related Questions

What colour does universal indicator go in a alkali?

Universal indicator turns shades of blue or purple in an alkali.


What colour will universal indicator paper go if dipped into ammonia solution?

Universal indicator paper will turn blue or blue-green when dipped into ammonia solution, indicating that the solution is basic or alkaline.


What colour does a base go in universal indicator?

It goes purple


When you put an alkali and Universal Indicator in a test tube what colour does it go?

When an alkali is added to a test tube containing Universal Indicator, it typically turns the indicator solution a dark green or blue color. This is because Universal Indicator is a mixture of different pH indicators that show a range of colors from red (acidic) to green (neutral) to blue or purple (alkaline). The specific color change observed may vary depending on the concentration and type of alkali used.


What colour does universal indicator go if salt solution is added?

red


What colour should face wash go when universal indicator is added?

green


What colour will salt water go in universal indicator?

Salt water typically forms a neutral pH solution, so it will likely appear green in universal indicator.


What is the colour of universal indicator solution in a neutral solution?

The Universal Indicator would go green which is pH 7.


What colour does the indicator go when in alkili?

The universal indicator turns blue or violet in alkaline solutions.


What is the specific name of universal indicator?

A Universal indicator is a pH indicator composed of a solution of several compounds that exhibits several smooth colour changes over a pH value range from 1-14 to indicate the acidity or basicity of solutions. A universal indicator is typically composed of water, propan-1-ol, phenolphthalein sodium salt, sodium hydroxide, methyl red, bromothymol blue monosodium salt, and thymol blue monosodium salt.


What colour does red cabbage indicator go in water?

it goes bluey purpley when it is in water and red in acid and yellow - green in alkali


What is a indicator of acid and alkali?

One common indicator of acids and bases is litmus paper. Litmus paper turns red in acidic solutions and blue in basic solutions. Another indicator is phenolphthalein, which is colorless in acidic solutions and pink in basic solutions.