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Chemistry > C15 Organic Reactions > Flashcards

C15 Organic Reactions Flashcards

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1
Q

Process used to make alkenes

A

Cracking

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2
Q

Uses of alkenes

A
  • Producing polymers
  • Used as chemical feedstock (raw material to supply or fuel a machine or industrial process)
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3
Q

Define feedstock

A

A raw material to supply or fuel a machine or industrial process

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4
Q

During combustion do alkanes or alkenes release more energy per mole

A

Alkanes release more energy per mole

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5
Q

When an alkene is combusted, is the combustion more likely to be complete or incomplete

A

Incomplete

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6
Q

Complete the word equation:

Ethene + Hydrogen ——> ____________

A

Ethane

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7
Q

Why are alkanes more saturated than alkenes

A

There is no more space to add more carbon or hydrogen atoms

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8
Q

What do you add to an alkene to form an alcohol

A

Water (vapour)

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9
Q

Show the general equation used to produce an alcohol

A

Alkene + Water ——–> Alcohol
OR
Glucose —> Ethanol + Water

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10
Q

What 3 things can you react with an alkene to produce a new product

A
  • Alkene + Halogens ——-> Di(Halogen)alkene
  • Alkene + Hydrogen ——-> Alkane
  • Alkene + Water ——-> Alcohol
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11
Q

Name the 2 ways an alcohol can be made

A
  • Fermentation of sugars
  • Reacting Alkene and water
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12
Q

What is produced when you react an alcohol and sodium

A

An alkoxide

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13
Q

What is the functional group of a carboxylic acid

A

COOH

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14
Q

What 2 products are produced when you react an alcohol and a carboxylic acid

A

Ethanol + Ethanoic Acid ——-> Ethyl Ethanoate + Water

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15
Q

Uses for alcohols

A
  • Mixed with water to form substances that don’t dissolve in water
  • Alcoholic drinks
  • Common in perfumes, aftershaves and mouthwashes
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16
Q

How do you form carboxylic acids

A

Oxidation of alcohols

17
Q

How to form an ester

A

Carboxylic acid + alcohol ——> Ester (REQUIRES SULPHURIC ACID AS A CATALYST)

18
Q

Uses of esters

A
  • Perfumes
  • Flavourings
19
Q

What happens to carboxylic acids when reacted with water

A
  • Carboxylic acid is partially ionised
  • Forms weakly acidic solutions (weak acids)
20
Q

Functional group of alcohol

A

OH

21
Q

General formula for alkanes

A

C(n)H(2n+2)

22
Q

General formula for alkenes

A

C(n)H(2n)

Chemistry (20 decks)

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