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for learning purposes

Good job, thank you for prepared what requested.

Well done. Keep on good job in coming video.

Hi hi... Thank you for dropped by and watched this video. Really appreciate if you can leave some comment here after watching. Your comment may allow me to do better in the future. Thank you.

Hello mam you are from which state i want to take offline tuition to you

This is the video that I like the most, the procedures are shown, the observation also clearly shown, these girls compare the structure of reactants and products clear in chemical equations, the mechanism of free radical also very clear. Well done, girls. mstay chem

Thank you so much for your hard work.

Conclusion can be better if you combine both part A & B.

Side product of bromination of phenol is *HBr* ya.

*oxidation* not oxidisation ya. Then, need to show *heat* for oxidation equation. Hydrogen atoms are missing in the structure of ketone in oxidation.

Good job, for the chemical equations for Lucas test.

The way you wrote the observation can be better.

The observations shown are clear. Good. Better label each test tube and also the name of the chemical test.

More description in procedure of Lucas test will be better.

The slide differentiate aliphatic alcohol & aromatic alcohol more suitable in conclusion.

Well done for the introduction. 👍

You can make your conclusion more specific like Lucas test and oxidation can use to differentiate classes of alcohol. Phenol reacts with bromine water to form white precipitate. Thank you.

For chemical equations, always remember include the reagent, solvent, catalyst, condition which is applicable. Thank you.

Good job, Huda & Afham. Both descriptions and pictures observation are very clear. 👍

Hi hi... There is correction for the naming at 24:00. The correct name is 3-ethyl-5-isobutyl-7methylnonane. Tq for correcting me.

Correction at 42:52, 1. the chemical equation is 2 mol H2 reacted with 2 mol NO to produce 2 mol of *H2O* and 2 mol of N2. 2. The reactant in the table is not N2 but is *NO*. 3. The concentration of H2 in Experiment is not 0.005 but is *0.0005*. Sorry for inconvenience caused. Thank you.

madam are you going to discussed phenol subjectibe question?

thank you miss for helping me doing my tuto question 😁

Thank you madam!! 😊

Thank you madam 🌹

Thank you for madam's lecture.

Thank you madam

Thank you madam 🤗

Thankyou madam

Thank you madam

There is a substitution value mistake at 6:43, the initial energy level suppose is n=4 and final energy level is n=2. At the same time, the energy change is -4.19 x10^-19 as energy released when electron is dropped. Wish to say "Terima kasih Najihah (H3T2)", she noticed the mistake that I made. Tq

Hello Miss Tay! Thank you for the video.. Saya pinjam video ya... bagi sama students..

There is some correction based on previous video. Correct answer for Q11 is D but not C. I mixed up both silicone and sulphur. Silicone is crystalline solid while sulphur is amorphous solid.

Thank you so much for the video miss! It is so helpingg me to understand well. Hope i can do the best in ups2!