CLASIFICATION OF ORGANIC COMPOUNDS

© 2023 PIHSSS | CONFIDENTIAL & PROPRIETARY

PIHSS

Chemistry/Course/CH#11

Organic chemistry

Chemistry

© 2023 PIHSSS | CONFIDENTIAL & PROPRIETARY

Organic compounds, condensed
structural formula, saturated and
unsaturated hydrocarbons, alkyl
radical, classification of organic

compounds.

Organic
chemistry

© 2023 PIHSSS | CONFIDENTIAL & PROPRIETARY

Welcome my

dear students

in your class

of chemistry

© 2023 PIHSSS | CONFIDENTIAL & PROPRIETARY

LEARNING OBJECTIVE

• To elaborate Alkane in

term of alkyl radicals, and

classification of organic

compounds.

Cross curricular link

Most of the fossil fuels are saturated
organic compounds in nature and obtained from dead remains of plants.(Biology)

Cultural Aspects: Traditional Perfume and Organic Compounds

The UAE has a rich tradition in perfume making, with many scents derived from natural organic compounds, such as essential oils and plant extracts.

How does the perfume industry in the UAE use organic compounds to create luxury scents?

Real Life application

Both saturated and unsaturated

organic compounds are vital for

various uses in daily like

industrial, medical and food stuff.

© 2023 PIHSSS | CONFIDENTIAL & PROPRIETARY

Prior Knowledge

➢ What you know about the
term “saturated and unsaturated”?

➢How saturation or unsaturation classify organic compounds in

different families?

© 2023 PIHSSS | CONFIDENTIAL & PROPRIETARY

Content

➢ organic compounds
➢ classification of organic compounds
➢ Alkanes
➢ Alkyl radicals
➢ sources of organic compounds

© 2023 PIHSSS | CONFIDENTIAL & PROPRIETARY

Alkane and Alkyl Radicals

•Alkane- hydrocarbon - CnH2n+2

•An alkyl radical is a group of atoms obtained by

removing one hydrogen atom from an alkane.

• Alkyl radicals are represented by symbol ‘R’.

© 2023 PIHSSS | CONFIDENTIAL & PROPRIETARY

Conversion of alkanes into alkyl radicals;

i.CH4 →CH3 – (methyl)

ii. CH3 -CH3 → CH3 –CH2 – (ethyl)

iii. CH3 –CH2 – CH3 → CH3 –CH2 – CH2 – (n-propyl)

iv. CH3 –CH2 – CH3 → CH3 –CH – CH3 (iso-propyl)

v. CH3 –CH2 – CH2 – CH3 → CH3 –CH2 – CH2 – CH2 – (n-butyl)

© 2023 PIHSSS | CONFIDENTIAL & PROPRIETARY

Classification of Organic Compounds

Organic Compounds

Open Chain/ Acyclic

Straight Chain

Branched Chain

Closed Chain/Cyclic

Homocyclic/ Carbocyclic

Heterocyclic

On the basis of
Carbon Skeleton

© 2023 PIHSSS | CONFIDENTIAL & PROPRIETARY

Classification of Organic Compounds

Based on carbon skeleton, organic compounds are

classified as;

1.Open chain compounds/ acyclic

compounds;


2.Closed Chain / Cyclic Compounds;

© 2023 PIHSSS | CONFIDENTIAL & PROPRIETARY

2.Closed Chain / Cyclic Compounds;

•Organic compounds which contain ring of atoms are called closed chain/cyclic compounds. •Rings of C atoms = homo-cyclic
•1 or more atoms other than C atoms in the ring = hetero-cyclic

Homo-cyclic organic compounds

Heterocyclic organic compounds

© 2023 PIHSSS | CONFIDENTIAL & PROPRIETARY

Can we use crude oil directly as a fuel for automobiles?

Critical Thinking

© 2023 PIHSSS | CONFIDENTIAL & PROPRIETARY

© 2023 PIHSSS | CONFIDENTIAL & PROPRIETARY

​ACTIVITY TIME

​GROUP ACTIVITY (Hands on Activity) (15 minutes)

Students will make different structures with

the help of molecular model kit to show



different linkages and compounds.

Individual Activity Quizziz(10 mins)

​Brain Booster

​Star Scientists

​Science Explorer

​Create a flowchart and organize the types of carbon skeletons and how they relate to one another.	​Draw the structures of each compound, labeling whether it's aliphatic or aromatic, and identify if it's cyclic or linear.	​Draw a table or Venn diagram comparing aliphatic vs. aromatic compounds and breaking down the carbon skeleton types (straight, branched, cyclic).
​Students will use the kits to physically construct molecules such as ethane, butane.	Students will use the kits to physically construct molecules such as Pentane, Heptane, Benzene.	Students will use the kits to physically construct molecules such as Decane, Nephthalene.
https://wordwall.net/resource/24901873/chemistry/organic-chemistry	​ https://quizizz.com/admin/quiz/67b18655b45f8f61257cb341?source=live_dash_game_complete&gameType=live&players=0	Explore complex cyclic structures (including heterocyclic compounds) and examine isomerism related to carbon skeletons. Or https://www.liveworksheets.com/w/en/chemistry/1831984

Read/Write

​Kinesthetic

Visual

​Next Level Challenge

​Next Level Challenge

​Next Level Challenge

© 2023 PIHSSS | CONFIDENTIAL & PROPRIETARY

❖https://www.liveworksheets.com/node/4668224

Next Level Challenge

© 2023 PIHSSS | CONFIDENTIAL & PROPRIETARY

❖
What is the classification of organic compounds?

❖
What are the sources of organic compounds?

❖
How alkyl radicals are formed?


❖
What is the difference between cyclic and Acyclic compounds?

Wrap-up Quiz

Assessment (4 mins)

➢

Self Reflection Form

https://docs.google.com/forms/d/e/1FAIpQLSeu3_RoRb3hO5-Ys3JcwlzB83ZArDoB25_Cwx-97a7iwMnuug/viewform?usp=header

➢

Extension Homework/Assignment

Create a comprehensive guide for naming organic compounds based on their structural classification. (A comprehensive naming guide with sections for each category of organic compounds and a set of examples, each with their name, molecular formula, and structure.)