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What does a positive Molisch's test on an unknown substance indicate?
A positive Molisch's test result indicates the presence of carbohydrates.
What does a positive presence-absence test indicate?
The Presence-Absence (P-A) test is a presumptive detection for coliforms.
What IMVic results would indicate the presence of fecal coliforms?
The IMViC test results that would indicate the presence of fecal coliforms are negative for indole production, positive for methyl red test, negative for Voges-Proskauer test, and positive for citrate utilization.
What does blue mean on a pregnancy test?
It depends on what that pregnancy test uses to indicate pregnancy. Read the directions carefully to see what they use to indicate a positive or negative pregnancy test.
Why KmnO4 is used as self indicator?
As we all know that the potassium permanganate (KMnO4) is the dark purple color solution ...and in titration it become colorless ....so when the titration is completed ...and the other single drop of KMnO4 solution produce pinkish colour in a beaker ...which indicate that the reaction was completed just a single drop before .. we use indicator in a a reaction in order to indicate ...but we dont used indicator in titration with KMnO4 because it also indicate us by changing its color ...colorless to pink
Does ethyne decolourize KMnO4 solution?
Yes it does. This is a general test for unsaturation.
Chemical symbol for permanganate?
The formula for potassium permanganate is KMnO4
What is the observation if to differentiate 2-butanone and 2-methylbutanal using Tollen's reagent and KMnO4?
2-butanone will give a positive test with Tollen's reagent, forming a silver mirror, while 2-methylbutanal will not react with Tollen's reagent. 2-methylbutanal will oxidize with KMnO4, turning the purple solution into a brown precipitate of manganese dioxide, while 2-butanone will not react with KMnO4.
Is biuret test suitable to test the presence of proteins in the urine?
Yes, the biuret test will indicate the presence of peptides. If it turns violet, it is a positive result.
Could bleeding after IUD fell out indicate pregnancy?
Signs of pregnancy are absent period and positive pregnancy test. If you think you're pregnant, take a pregnancy test.
You took a pregnancy test and it came out positive you are also almost 2 months late on your period is this a phantom pregnancy?
If your pregnancy test is positive then most likely you are. You would be more likely to get a false negative rather than a false positive. If you are unsure, you can request a beta HCG test from your doctor. This will measure the HCG hormone in your blood system which is an indicator of pregnancy. The pregnancy test is positive and you haven't had a period in two months. I see nothing to indicate that this is a 'phantom' pregnancy other than maybe wishful thinking. I've been told that the home test kits may give a false negative, but that they never indicate a false positive.
Do Hydrocodone and Morphine give the same results on an urine test?
Yes the two substances will indicate a positive result for opioid ingestion.
