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phenolphthalein reaction is indicative of blood, it is only a presumptive test and false positives are possible. Additionally, the reaction is not species specific. Positive reactions are not limited to human blood.
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Jhanna Mabayang
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Why tartaric acid not give phenolphthalein test?
because of hydroxyl group
Which is more polar bromophenol blue or phenolphthalein?
phenolphthalein
What is the color of lime water when phenolphthalein is added into lime water?
The color is pink with phenolphthalein.
What happens when water is added to phenolphthalein?
Phenolphthalein dissolves in water to get a clear transparent solution.
What is the name of the solution to test for acids or alkalis?
There are various ways to test for an acid and an alkali. For acidic solution: Litmus paper/ litmus solution --> red Phenolphthalein --> colorless Methyl orange --> pink Universal Indicator (changes color according to the strength of acid) --> red to yellow. For alkaline solutions: Litmus paper/ litmus solution --> blue Phenolphthalein --> pink Methyl orange --> yellow Universal Indicator --> blue green to purple
Why tartaric acid not give phenolphthalein test?
because of hydroxyl group
How will Phenolphthalein help you test for unknown substances?
phenolphthalein turns pink when basic solution is added to it but remains colorless in case of neutral and acidic solution
What are the limitations of benzidine test?
The benzidine test is a test for cyanide. The limitations of this test are that benzidine has been linked to bladder and pancreatic cancer.
Is solution x safe to drink with phenolphthalein?
what would happen if scientists were testing to see if a substance was safe to drink and used phenolphthalein as an indicator and what would happen if the test was done using methyl orange
What will happen with each what indicators used to test an acid phenolphthalein?
Does mindless behavior like the omg girls
What will happen when phenolphthalein paper is used to test a base?
It will change its colour from white to red on increasing the pH(for bases)
Are there limitations to the oxidase test?
There are none.
Which is more polar bromophenol blue or phenolphthalein?
phenolphthalein
Is phenolphthalein a compound?
Yes, phenolphthalein is a compound with the molecular formula C20H14O4.
What is phenolphthalein made of?
Phenolphthalein is made up of, H20, C14, O4,
How can you test for acids and bases?
by using phenolphthalein,litmus paper (red and blue),cabbage,tea,and PH paper or PH meter
What is the color of lime water when phenolphthalein is added into lime water?
The color is pink with phenolphthalein.
