Iodine Test For Starch Practical Experiment
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- Опубликовано: 30 май 2021
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well explained,thank you for your work
Thank you. I do appreciate your work.
thank you for the demonstration.
Well explained! Thank you!
Hey, thank you so much for this video. Keep it up, congrats
May I ask? This site I found says that "Together, they form polyiodide ions of the type In-, for example, I3-, I5-, or I7-. The negatively charged iodide in these compounds acts as charge donor, the neutral iodine as a charge acceptor. Electrons in such charge-transfer complexes are easy to excite to a higher energy level by light. The light is absorbed in the process and its complementary color is observed by the human eye."
But you mentioned that the polyiodide is the charge acceptor, not the donor. Why is that? Isn't Iodine a negative charge (reducing agent)?
I like the video it can help me
👋👋😇😇 So Helpful !!!
Kindly add some references also, Thank You !
Could you make a video for Bials Test?
This is interesting
thanks for the great video, do you know any sources of error and precautions to take for this experiment?
Iodine starch test is a pretty straightforward andd sensitive test. No specials precautions are needed. But make sure there are no traces of starch in the glassware and other articles used in the test by pre cleaning them with soap and water.
Thank you for the clear and adequate explanation, but how do you prepare a transparent and homogeneous solution of starch?
Make a paste of 0.5 or 1g starch with a small amount of cold water. Then add this paste slowly and gradually to about 100ml of boiling hot water. You have a clear transparent solution.
Very good
How many drops is 1 ml ?
Thanks sir
1:25
iodiine io tri iodine iodine ion iodine 😭😭
lmao
😮
What does it mean if the liquid turns light purple
Light purple is also a positive test. Just that there is much lesser amount of starch present
@@TheSingtangpaScienceGuy thank you
Iodine means
Chemical that shows starch
👍👍👍👍👍👍👍👍🥰🥰🥰🥰🥰🥰