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Q: Does purple universal indicator mean neutral?
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How is a indicator used?

If you mean a universal indicator, it is used to detect if a chemical is acid, alkali or neutral. It changes colour to show the chemicals position on the pH scale A universal indicator turns red at pH1 (Very acidic), orange at pH4 (Fairly acidic), yellow at pH6 (Not very acidic) and green at pH7 (Neutral). It turns more dark blue as it gets to pH10 (Quite Alkaline) and more to purple by ph12 (Even more alkaline) and to a dark purple by pH14( Very Alkaline).


What happens to the indicator when a base is added?

There are a huge range of indicators that can be used in chemistry, but I presume you'll be using the basic 'universal indicator' here. A base will turn this indicator (depending on its strength) light/dark blue, or purple if it is quite strong. Or do you mean in terms of chemical reaction?


What does acid base indicator mean?

Red cabbage or beetroot juice will do the job.


What colour would a neutral soloution become if universal indicator was added to it?

I don't know what you mean by "universal indicator". That's a generic term for a mixture of indicators that displays distinct colors over a fairly broad pH range, but without knowing which specific one you're using it's difficult to say. However, a lot of them are minor variations on Yamada's 1923 patent, so I'd expect that it would probably be somewhere in the greenish part of the spectrum. Exactly where depends on the particular ratios of the various indicator compounds used.


What do you mean by range of a relation and function?

They mean whether or not the pillow should be burnt by the aliens who invade the universal studios by the colour purple hat


What are the disadvantages of universal indicator?

they are too expensive to get hold of


How to get a table of ph level?

Please see related link (table with some common pH values). I think this is what you mean. If you are referring to universal indicator strip look to the back of the card.


What colors do chemical indicators turn and what do the colors mean?

With PH indicators, showing acidity and alkalinity, green is neutral, blue-purple is alkaline, yellow-red is acid.


What do the indicator lights mean?

indicator lights means the vehicle is turning


What does a malfunction indicator light mean on a Toyota?

what need to do when indicator light is on


What does universal themes mean?

universal theme


Can acid react to a neutral?

If you mean with a neutral then yes.