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pH strips are used to determine whether a solution is acidic or basic
You are not supposed to use buret reagent to detect sugar carbohydrates in a solution. Buret reagent is used to detect proteins. Try using iodine ( I2KI)
An acidic solution has the pH under 7.
An iodine solution is used.
An acidic solution has a pH below 7.
A very acidic solution will have a very low pH.
Adding water dilutes the solution and will raise the pH of an acidic solution (which is to say, the solution becomes less acidic).
biuret reagent
The solution is acidic.
It is used in labs to indicate how much acidic or basic a solution is.
One possibility is a 10% solution of hydrochloric acid.
A very acidic solution will have a very low pH.