Introduction to Hydrocarbons

Presentation

•

Chemistry

•

10th - 11th Grade

•

Medium

Nicole Kerr-Walker

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12 Slides • 15 Questions

Hydrocarbons

Prepared for CSEC Chemistry

By Nicole Kerr-Walker

Objectives

identify different organic compounds
identify natural gas and petroleum as natural sources of hydrocarbons
give (experimental) differences between hydrocarbons
write fully displayed structures

Poll

Can you write observations comparing alkanes and alkenes?

Yes, I can give observation differences between alkanes and alkenes

Somewhat, I think I know one or two differences

No, I really don't know anything

Sources of Hydrocarbons

Fractional Distillation is used to separate substances with close boiling points.
The lower and heavier fractions have a higher boiling point
The smaller hydrocarbons with low boiling points rises and condenses on bubble caps at the respective boiling points

Multiple Choice

Which fraction collects at the top of the fractionating column?

Bitumen

Kerosene

Petrol

Refinery Gas

Multiple Choice

What substances are NOT present in refinery gas?

methane (C1)

ethane (C2)

propane (C3)

octane (C8)

Experimental

Which hydrocarbon will produce a yellow sooty flame?
Which hydrocarbon will produce a clean blue flame?
What a the constituents of liquid petroleum gas?

Structural formula

Draw structure of a compund containing 6 carbons.

General formula CnH2n+2

Structural Formula

Draw an alkene with 6 carbon atoms.

General formula: CnH2n

Multiple Choice

Both alkanes and alkenes react rapidly with aqueous bromine at room temperature.

True

False

Multiple Choice

Both alkanes and alkenes react rapidly with aqueous bromine at room temperature.

True

False

Multiple Choice

Alkanes are known as saturated hydrocarbons because they contain only carbon-hydrogen single bonds.

True

False

Multiple Choice

The molecular formula for Heptane is

C₄H₁₀

C₇H₁₈

C₅H₁₂

C₇H₁₆

Multiple Choice

If an alkene reacts with a halogen, it is known as what type of reaction?

Addition

Combustion

Polymerisation

Hydrogenation

Multiple Choice

What is the suffix for double bond hydrocarbons ?

-ol

-ene

-ane

-one

Multiple Choice

In complete combustion, the products are?

Carbon monoxide and water

Carbon dioxide and water

Carbon dioxide and carbon

Carbon and water

Multiple Choice

Which formula represents an unsaturated hydrocarbon?

Multiple Choice

Name this alkane

Methane

Ethane

Propane

Butane

Multiple Choice

Hydrocarbons are compounds that contain

Carbon, only

Carbon and Hydrogen, only

Carbon, Oxygen, and Hydrogen, only

Carbon, Oxygen, Hydrogen, and Nitrogen, only

Multiple Choice

Hydrocarbons are compounds that contain

Carbon, only

Carbon and Hydrogen, only

Carbon, Oxygen, and Hydrogen, only

Carbon, Oxygen, Hydrogen, and Nitrogen, only

Structural Formula

Draw an alkene with 6 carbon atoms.

General formula: CnH2n

Poll

Self Assessment

Can you do the following?

List the uses of hydrocarbons

Explain how crude oil is separated

draw structural formula of hydrocarbons

give the general formula of hydrocarbons

give (experimental) differences between hydrocarbons

References

https://www.gaageegoo.info/2014/12/carbon-and-its-compounds-bhydrocarbons.html?m=1
https://2012books.lardbucket.org/books/introduction-to-chemistry-general-organic-and-biological/s16-unsaturated-and-aromatic-hydro.html
https://www.gaageegoo.info/2014/12/carbon-and-its-compounds-bhydrocarbons.html?m=1
https://www.slideserve.com/lance/hydrocarbon-names
https://docbrown.info/page04/OilProducts05.htm
http://www.3rd1000.com/chem301/chem301j.htm
https://www.facebook.com/engrandarch/posts/426357158059810

Hydrocarbons

Prepared for CSEC Chemistry

By Nicole Kerr-Walker

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