Chemistry, asked by nisha1456, 1 year ago

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✨✨Note on universal indicator....
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Answers

Answered by ashish55587
4
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✴ Universal indicator is a pH indicator

✴They are made up of several compound that exhibit several smooth colour changes over a wide range Ph value to indicate weather the solution is acidic of basic

✴Yamada in 1933 patented several commercially available universal PH indixator


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Answered by Rishikta
3
HELLO!!!

ANSWER:

A universal indicator is a pH indicator made of a solution of several compounds that exhibits several smooth colour changes over a wide range pH values to indicate the acidityor alkalinity of solutions. Although there are several commercially available universal pH indicators, most are a variation of a formula patented by Yamada in 1933.

The colours that indicate the pH of a solution, after adding a universal indicator, are:

(pH range - Description - Colour)
< 3 - Strong acid - Red
3–6 - Weak acid - Orange or yellow
7 - Neutral - Green
8–11 - Weak base - Blue
> 11 - Strong base - Violet or Indigo

The colours from yellow to red indicate an acidic solution, colours blue to violet indicate bases and green colour indicates that the solution is neutral.

HOPE IT HELPS YOU!!


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