Section 3: Chemistry Flashcards

1
Q

What is the general formula for alkanes?

A

C2H2n+2

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2
Q

What is the general formula for alkenes?

A

C2H2n

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3
Q

What is the difference between alkanes and alkenes?

A

Alkanes are saturated

Alkenes are unsaturated (double C=C bond)

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4
Q

What are the two forms of polymerisation?

A

Addition polymerisation

Condensation polymerisation

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5
Q

What is addition polymerisation?

A

Double C=C bond breaks open to form links with other double C=C bonds

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6
Q

What is condensation polymerisation?

A

Monomers join together with elimination of water molecules
H-[x]-O-H + H-[y]-O-H –> H-[x]-[y]-O-H + H-O-H
Cellulose condensation polymer of glucose

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7
Q

What is the process of making a biopolymer?

A

Suitable micro-organism cultured in suitable medium
Rapid reproduction
Nutrient supply changed
Micro-organisms make polymer rather than reproduce
Polymer stored in micro-organisms
Micro-organisms collected and polymer separated

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