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acidic red, neutral green and alkali purple

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How are indicators used to detect acids and alkalis?

Indicators (for example LITMUS PAPER) can detect whether a certain liquid is an acid or an alkali. Litmus Paper turns red when dipped in an acid, blue in an alkali Universal Indicators have show how strong or weak and acid or alkali is.


What is the difference between an indicator and a universal indicator?

A pH meter uses a probe and voltmeter to measure pH digitally. Universal indicator is a mix of indicators that change colour to indicate the pH of the solution. pH meters are accurate and will detect changes quickly, whereas universal indicator is slow to change colour to indicate pH change.


What colour universal indicator turns to a neutral?

Green is the color that universal indicator turns to when it is neutral.


What shows whether something is an alkali or acid?

You can use indicators (liquid or paper). Universal Indicators (UI) are the best, as with them you can tell if something is acid, neutral or alkali, depending on the colour (there will be a colour indicator). However, you can also use red and blue indicator, but they are less accurate, as although they might be acid (or alkali), they might be neutral as well, so I suggest you use UI. Hope this helps :) Source: Science lessons!


What color change does each indicator show to represent acids bases and neutral?

There are far too many indicators to give them all. Litmus is blue in alkali, red in acids and an in-between colour often called claret when neutral. Universal indicator is red in strong acids, blue in strong alkalis and different colours in between depending on the brand.

Related Questions

Is sea water acid or alkalis or neutral?

neutral.


How are indicators used to detect acids and alkalis?

Indicators (for example LITMUS PAPER) can detect whether a certain liquid is an acid or an alkali. Litmus Paper turns red when dipped in an acid, blue in an alkali Universal Indicators have show how strong or weak and acid or alkali is.


Does Neutral mean safe?

Not really. On the pH scale of Acids and Alkalis, Neutral is the green colour at which a liquid is neither Acid nor Alkalis.


What three indicators would make a good universal indicator?

Well, there are the three main ones which are neutral, acids, alkaliHope this helped :)


What is the difference between an indicator and a universal indicator?

A pH meter uses a probe and voltmeter to measure pH digitally. Universal indicator is a mix of indicators that change colour to indicate the pH of the solution. pH meters are accurate and will detect changes quickly, whereas universal indicator is slow to change colour to indicate pH change.


What colour is sodium chloride in a universal indicator?

Sodium chloride is a neutral substance and will not exhibit a specific color in a universal indicator. Universal indicators change color based on the pH of a solution, not the presence of specific compounds like sodium chloride.


Is purewater acid or alkalis?

it is neither. pure water is neutral (PH 7)


What colour universal indicator turns to a neutral?

Green is the color that universal indicator turns to when it is neutral.


What is acid neutral?

alkalis / bases neutralise acids, a method in which to do this is titration where the acid is slowly added to the alkali through a burette until the mixture is neutral


What shows whether something is an alkali or acid?

You can use indicators (liquid or paper). Universal Indicators (UI) are the best, as with them you can tell if something is acid, neutral or alkali, depending on the colour (there will be a colour indicator). However, you can also use red and blue indicator, but they are less accurate, as although they might be acid (or alkali), they might be neutral as well, so I suggest you use UI. Hope this helps :) Source: Science lessons!


What color do neutral solution turn the unniversal indicator?

A neutral solution will turn universal indicator green.


What colour does pH paper turn in neutral soloutions?

A moist litmus paper does not change its colour in neutral solutions.