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How did methyl violet methyl blue and methylene blue come to be called this name?
The "methyl" and "methylene" come from their chemical structures. Something that has "methyl" in its name contains a methyl group - CH3. A common chemical like this is methyl alcohol - CH3OH. The methylene group is CH2. The blue and violet? That's what color they are.
Will apple juice turn blue-black when iodine is added?
No, apple juice will not turn blue-black when iodine is added. The blue-black color change indicates the presence of starch, which apple juice does not contain in significant amounts. Instead, the iodine will typically remain a brownish color when mixed with apple juice.
Why would a scientist use a coloured liquid instead of water in a thermoscope?
If the liquid is blue, then it is most likely iodine. They would use iodine instead of water because it is easier to see and if i am not mistaken, it makes things clearer.
What could you say about a substance if it did not turn blue-black with iodine?
While presence of starch is indicated by the bluish-black color change of a substance with the introduction of Iodine, it doesn't necessarily mean the absence of starch is the substance doesn't become blue or black in color. If a substance doesn't become blue or black in color on the application of iodine, it means the substance doesn't form any complex with Iodine. Generally, when a substance creates a complex with Iodine, it is in blue color.
What is the name of the blue colouration in methyl orange?
what is the colour of the blue and orange colouration in methyl orange
Why did iodine stop turning blue-black?
Iodine turns blue-black when it comes in contact with starch because it forms a complex with the starch molecules. If iodine stopped turning blue-black, it could be due to the absence of starch, chemical interference with the reaction, expired iodine solution, or improper storage conditions affecting the reactivity of the iodine.
What is the product of the reaction between starch and iodine?
The product of the reaction between starch and iodine is a blue-black complex known as iodine-starch complex. This complex forms due to the iodine molecules inserting themselves into the helical structure of starch, creating this distinctive color change.
A drop of iodine accidentally falls on a piece of paper predict the colour change?
Could easily turn blue/purple in reaction to paper fibers.
What is a good picture for an iodine superhero?
A good picture for an iodine superhero could be a character dressed in a vibrant blue and purple costume, with the elemental symbol "I" prominently displayed. They could be depicted using their elemental powers to ward off enemies with a glowing blue light or harnessing iodine's unique properties in their heroic acts.
What colour is methyl violet in alkali?
Methyl violet appears as a greenish-blue color in alkali.
Can you use iodine solution instead of methylene blue in cheek cell slide?
Yes, you can use iodine solution instead of methylene blue to stain cheek cells. Iodine primarily stains carbohydrates, highlighting certain cellular structures like nuclei and providing contrast. However, methylene blue is a general stain that can better enhance the visibility of cellular details, such as the nucleus and cytoplasm. While both stains can be used, methylene blue may offer clearer results for observing cheek cells.
Can you use indicator other than phenolphthalein in the titration of NaOH?
Yes, you can use indicators such as bromothymol blue or methyl orange in the titration of NaOH. These indicators change color at different pH ranges and can be used based on the specific pH endpoint needed for the titration.
