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(Individual) All 4 students must submit their discussion separately.  Write your name as the subject 

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(Individual) All 4 students must submit their discussion separately.  Write your name as the subject 

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Record a 30s video saying what you have learned or gained from this experiment.

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https://youtu.be/ymZGts3bFZE?si=BtTsAVHvxq_wRYvf

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You are required to fill in the blanks and make correct equation..

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KANAN :

AINA NAFEESA BINTI SHAHARUDDIN

MS2317177355

KIRI :

AINNUR MARFUAH BINTI ROSLAN

MS2317176972

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KIRI:

NUR AQILAH BINTI ABDUL HALIM

MS2317177589

KANAN:

NUR ALIYAH BINTI MOHD HASSAN

MS2317176864

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(Group) List ONE problem encountered for this experiment 

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(Group) List ONE problem encountered for this experiment 

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1. Failed to identify the precipitate formed in iodoform test

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Water bath

thermometer

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1. What's the functional group for aldehydes and ketones ?

The functional group for aldehydes and ketones is carbonyl.

2. Aldehydes and Ketones can be further classified as ?

Aldehydes and Ketones are classified as aliphatic or aromatic.

3. Which test differentiates aldehydes and ketones from other class of compounds ?

Brady's test.

4. Name the test that can be used to differentiate between aldehydes and ketones.

Tollen's test.

3. Name the test that can be used to differentiate aliphatic aldehyde and aromatic aldehyde.

Fehling’s test.

4. What is purpose of iodoform test ?

To identify the presence of methyl carbinol group in a compound.

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1. a) The yellow precipitate is iodoform and its molecular formula is CHI3.

b) Carbonyl functional group.

2. Tollens' test. Only aldehydes can give a positive result from the experiment because oxidation reaction occur and silver mirror formed. Thus, only propanol react with Tollens' reagent while propanone give no reaction.

3. Both propanol and propanone are polar and soluble in water because they can form hydrogen bonds with water molecules.

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(Group) Identify two precautions to improve the reliability of the experiment al results 

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(Group) Identify two precautions to improve the reliability of the experiment al results 

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1. Keep all sources of fire away from the carbonyl compound to prevent accidents.

2. Always keep reagent bottles tightly closed, as carbonyl compounds easily evaporate.

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Conclusion

1. Brady's test is used to differentiate aldehydes and ketones from other class of compounds.

2. Suitable tests to differentiate aldehydes and ketones are Tollen's test and Fehling's test.

3. Unknown Y is an aldehyde.

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1. Libretexts, J. C. (2023, January 23). Properties of aldehydes and ketones. Chemistry LibreTexts. https://chem.libretexts.org/Bookshelves/Organic_Chemistry/Supplemental_Modules_(Organic_Chemistry)/Aldehydes_and_Ketones/Properties_of_Aldehydes_and_Ketones/Properties_of_Aldehydes_and_Ketones

2. Byju’s. (2019, November 21). Oxidation: Tollen’s & fehling’s reagent, Baeyer‐Villiger oxidation, videos. Toppr. https://www.toppr.com/guides/chemistry/aldehydes-ketones-and-carboxylic-acids/oxidation/

3. Admin. (2021, June 7). Iodoform test - description and mechanism - compounds that test positive. BYJUS. https://byjus.com/chemistry/iodoform-test/#:~:text=Iodoform test is used to,with an “antiseptic” smell.

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(a) The yellow precipitate is tri-iodomethane (iodoform) and it's molecular formula is CHI3

(b) M is ketone so the functional group present is carbonyl (-CO) group

2. Tollen's reagent . Aldehyde (propanol) can give positive results on Tollen's reagent while ketone (propanol) will give negative results on Tollen's reagent

3. Both propanone and propanol are polar and can form hydrogen bonds with water, making them both soluble in water.

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1. (a) The yellow precipitate is iodoform.Its molecular formula is CHI₃.

(b) carbonyl group

2.Tollen's test because propanal will forms a silver mirror while propanone gives no reaction

3.Both propanol and propanone dissolve well in water because they can form interactions with water molecules.

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1. a) The yellow precipitate is triiodomethane with molecular formula of CHI3

b) Carbonyl group which is ketone

2. Tollens’ test. Propanone will give negative result while propanal will give positive result.

3. Propanol and propanone are soluble in water because both can form hydrogen bond with water molecule.

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Research: Use the internet to find about 1 of the following.

Create 1 page infographic.

1. Carbonyl Compounds in Daily Life

Examples:

Identify three everyday products that contain aldehydes or ketones (e.g., formaldehyde in disinfectants, acetone in nail polish remover, vanillin in food flavoring).

Briefly explain the role of the carbonyl compound in each product.

2. Medicinal Applications

Examples:

Explore the use of aldehydes or ketones in medicine (e.g., formaldehyde in vaccines, cortisone containing a ketone group for inflammation).

Explain why these compounds are effective in their applications.

3. Environmental or Green Chemistry Angle

Examples:

Investigate how green chemistry principles are applied to processes involving aldehydes or ketones (e.g., bio-based production of acetone, reducing waste in formaldehyde production).

Provide a short example of an eco-friendly innovation.