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Alkaline levels are essential for the solution to change colour. Without alkaline levels, the colour of the solution would not be detectable.
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Why ammonia is added in heavy metals limit test?
ammonia solution is used to make the solution alkaline. In alkaline solution ,metals give colour with hydrogen sulphide.
Is Benedict's solution alkaline?
"a deep-blue alkaline solution used to test for the presence of the http://www.answers.com/topic/aldehyde functional group, −CHO. " according to Columbia Encyclopedia, yes. :)
Why sodium extract is alkaline in nature?
It is because sodium reacts with water (present in test tube or porcelain basin) to give a alkaline solution of NaOH.
Which litmus paper turns blue in acid solution?
Litmus paper is basically used to test nature of solution i.e acid or alkaline. For acid blue litmus turns to red. But for alkaline red litmus turns to blue color.
What color does a strip of litmus paper dipped in acidic solution turn?
Litmus paper is blue when dipped in an alkaline solution, and red when placed in an acidic solution. The colors begin to merge when you test pH neutral liquids.
Which chemical test shows the presence of an enzyme in a biological washing powder?
biurets test is the biochemical test for enzymesan enzyme is a protein and as the biochemical test for proteins is biurets,, its the same
What organic compound does biurets test for?
proteins
What can you use to test for lithium hydroxide?
Universal Indictor to test if it is an alkaline solution
What is the Biurets test?
The Biurets test is used to identify if there are proteins present in a substance. The bond between the amino group and the carboxyl acid group on adjacent amino acids in a protein is a peptide bond. When the Biuret reagent (1 percent solution of copper sulfate) is added to a solution containing peptide bonds, the solution turns a violet color. The violet color is a positive test for the presence of protein. The more intense the color, the greater the number of peptide bonds that react. Hence, if it turned purple, then there are proteins, but if it stayed blue, then no proteins are present. Mostly it is used to check for enzymes which are made of proteins.
Why ammonia is added in heavy metals limit test?
ammonia solution is used to make the solution alkaline. In alkaline solution ,metals give colour with hydrogen sulphide.
Is Benedict's solution alkaline?
"a deep-blue alkaline solution used to test for the presence of the http://www.answers.com/topic/aldehyde functional group, −CHO. " according to Columbia Encyclopedia, yes. :)
What are the different indicators used in the laboratory?
to test if a solution is acidic, alkaline or basic
Why sodium extract is alkaline in nature?
It is because sodium reacts with water (present in test tube or porcelain basin) to give a alkaline solution of NaOH.
Why sodium extract is usually alkaline in nature?
It is because sodium reacts with water (present in test tube or porcelain basin) to give a alkaline solution of NaOH.
What is the reason to test the solution with litmus paper?
To check the pH of the item. Yellow is acid, and red is alkaline, I think.
Which litmus paper turns blue in acid solution?
Litmus paper is basically used to test nature of solution i.e acid or alkaline. For acid blue litmus turns to red. But for alkaline red litmus turns to blue color.
What is the difference between fehling and Benedict test?
The Fehling test is used to detect glucose, aldehydes and ketones. Benedict's test is used to determine the presence of reducing sugars such as fructose, glucose, maltose and lactose. It is also used to test for the presence of glucose in urine. The two tests are not exactly the same.
