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Which halogens give a positive beilstein test?
Chlorine, bromine, and iodine give a positive Beilstein test. The test involves ignition of a compound in the presence of copper oxide, which forms a green flame due to the halogen present in the compound.
Does phenol give a positive biuret test?
No, phenol does not give a positive biuret test. The biuret test is used to detect the presence of proteins, not phenol. Phenol is a type of organic compound that does not contain the peptide bonds that the biuret test reacts with.
Do proteins give positive iodine tests?
Yes, proteins can give a positive iodine test. When iodine reacts with proteins, it forms a complex that results in a brown color change, indicating a positive test for proteins.
After hydrolysis did sucrose give a positive test with fehlings test why orwhy not?
Sucrose would not give a positive test with Fehling's reagent after hydrolysis because sucrose is a non-reducing sugar. During hydrolysis, sucrose is broken down into its monosaccharide components (glucose and fructose), which are reducing sugars and can react with Fehling's reagent to give a positive test for reducing sugars.
Will methanol give a positive result in iodoform test?
No, methanol will not give a positive result in the iodoform test. The iodoform test is specifically used to detect the presence of compounds with the CH3CO- group in them, such as methyl ketones, which are required for a positive reaction.
Did gelatin give positive result with xanthoprotic test?
yes,it give positive test
What colour does a pregnancy test go when positive?
Pink- Positive Blue-Negative
How does DCPIP work as an indicator in the detection of Vitamin C?
Yes it does (I know because i did the test on orange juice) The more Vitamin C something has in it the less drops of that thing (in my case the orange juice) is needed for the DCPIP to go pale yellow. It is an awesome test! I would try it ( only if you have DCPIP and lots of different types of orange juice! Of course!)
Which halogens give a positive beilstein test?
Chlorine, bromine, and iodine give a positive Beilstein test. The test involves ignition of a compound in the presence of copper oxide, which forms a green flame due to the halogen present in the compound.
Will benadryl give you a false positive breathalizer?
I have to do weekly breathalyzer test will Benadryl make me test positive
Does formalin give positive Fehling's solution test?
Formalin gives a positive Fehling's solution test.
What is the result of Benedict test in lactose?
I know that with Fructose it turns red and forms precipitate
Does phenol give a positive biuret test?
No, phenol does not give a positive biuret test. The biuret test is used to detect the presence of proteins, not phenol. Phenol is a type of organic compound that does not contain the peptide bonds that the biuret test reacts with.
Do proteins give positive iodine tests?
Yes, proteins can give a positive iodine test. When iodine reacts with proteins, it forms a complex that results in a brown color change, indicating a positive test for proteins.
What are the chances of a false positive with a pregnancy test?
If the test is done properly, the chances to give false positive test are very slim indeed.
After hydrolysis did sucrose give a positive test with fehlings test why orwhy not?
Sucrose would not give a positive test with Fehling's reagent after hydrolysis because sucrose is a non-reducing sugar. During hydrolysis, sucrose is broken down into its monosaccharide components (glucose and fructose), which are reducing sugars and can react with Fehling's reagent to give a positive test for reducing sugars.
Can hcg drops give you a positive pregnancy test?
No, they can not. If your pregnancy test showed up positive, you are most likely pregnant. - M.D. in Medical Science
