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Is the crystal violet test result positive or negative?

The crystal violet test result is positive.


The element which gives you violet vapour on heating it?

Iodine is the element that gives off violet vapor when heated.


What color does potassium show in a flame test?

Lilac or Violet. Lithium ; Red Sodium ; Yellow Copper ; Blue/Green Barium ; Pale Green. Are some of the ccommon flame colours. There are many more flames test colours for different elements.


Which metal reacts with water and burns with a lilac flame?

Potassium has a violet color in the flame test.


Whats a simple test for proteins on egg white?

the result of the test is violet color


What is the name of the doll Aunt Josephine gives to Violet?

suny


What type of electromagnetic radiation gives sunburn?

ultra violet


What color will a peptide bond be after using the Biuret test?

in biuret test the presence of peptide bonds gives a violet color. but it should be noted that a minimum of two peptide bonds should be present in the protein to get a positive answer to this test.


Which halogen sublimes to violet vapours?

iodine is the only halogen in solid form. so it is the halogen which gives violet vapours on sublimation...


What is indication of violet color in biuret test of enzymes?

A violet color in the biuret test indicates the presence of proteins or peptides. This color change occurs when the copper ions in the biuret reagent form a complex with the peptide bonds in proteins, resulting in the violet color.


What colour is biuret before test?

Biuret solution is typically blue-violet in color before the test.


What colour does glucuronic acid produces during bial's test?

Glucuronic acid would produce a violet color during the Bial's test. The violet color indicates the presence of pentoses or uronic acids in the solution.