Iodine Test For Starch Practical Experiment

[@boukharia.a.8108]

well explained,thank you for your work

[@Tharushi_SM]

Thank you

[@johnandrehilagan1367]

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)?

[@kamithagunarathna6421]

Well explained! Thank you!

[@Sirbruno42]

I like the video it can help me

[@sophiewoodruffe]

thanks for the great video, do you know any sources of error and precautions to take for this experiment?

[@TheSingtangpaScienceGuy]

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.

[@aviralbansal7575]

Kindly add some references also, Thank You !

[@arshad_ahamed_a]

thank you for the demonstration.

[@hawaeltaweel5940]

Thank you for the clear and adequate explanation, but how do you prepare a transparent and homogeneous solution of starch?

[@TheSingtangpaScienceGuy]

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.

[@BrunoOliveiraiq]

Hey, thank you so much for this video. Keep it up, congrats

[@thomia3316]

Could you make a video for Bials Test?

[@Learning-jc2oq]

👋👋😇😇 So Helpful !!!

[@JesusIsKING7140]

Ginger goes blue black! 👍

[@JesusIsKING7140]

So can i ask the end product that is now blue black is it harnful to digest? I take iodine everyday i noticed this reaction because i put it in a cup that had had ginger tea in it, if i take iodine then drink ginger tea or eat starches is this reacting in my stomach harmful it is making me think i should take the iodine on an empty stomach?? Anyone??

[@BlessingsNgoma-xq9vf]

This is interesting

[@rachaelkk8997]

How many drops is 1 ml ?

[@Soniagujjar-i4b]

Very good

[@EmersonMandel-f7f]

Herminio Shoal

[@alicem6420]

What does it mean if the liquid turns light purple

[@TheSingtangpaScienceGuy]

Light purple is also a positive test. Just that there is much lesser amount of starch present

[@alicem6420]

@@TheSingtangpaScienceGuy thank you

[@zskilledapik]

1:25 iodiine io tri iodine iodine ion iodine 😭😭

[@Axel-mf4bo]

lmao

[@zakirhussain9081]

Iodine means

[@tatendam4956]

Chemical that shows starch

[@shahriarkawsar5526]

Thanks sir

[@shadanahamed7579]

😮

[@VIDEOSTOWATCH-gv8sc]

👍👍👍👍👍👍👍👍🥰🥰🥰🥰🥰🥰