S2 Module 3 & 4

Name the organic family for this structure:

• organic halides
• alkenes
• alcohols
• aromatics

What is the organic family for methoxyethane  (ethyl methyl ether)?  

• organic halides
• esters
• alcohols
• ethers

What is a functional group?

• Atoms or group of atoms that give specific characteristics to a molecule

• Group of molecules that make up a group of atoms

• Group of molecules that give specific characteristics to an atom

• Group of atoms that give specific characteristics to an element

What is a hydrocarbon that contains only single bonds called? 

• organic  
• saturated
• unsaturated
• fully bonded

Define polymer

• circular molecule made with many repeating units

• short molecule made of a few repeating units

• long, chain-like molecule made of repeating units

• chain-like molecule that contains hydrogen and oxygen

Polymer made by repeating units of Ethene

• Polyethene

• Teflon

• PVC

• polypropylene

Which is not a naturally occuring polymer

• DNA

• Teflon

• Starch

• Silk

Which of the following is true about vulcanized and unvulcanized rubber?

• Vulcanized rubber is less elastic than unvulcanized rubber

• Vulcanized rubber become soft and sticky easily compared to unvulcanized rubber

• Vulcanized rubber is stronger than unvulcanized rubber

• Vulcanized rubber is more easily oxidised than unvulcanized rubber

What is vulcanization?

• A process whereby rubber is reacted with oxygen.

• A process whereby rubber is reacted with sulphur

• A process whereby rubber is reacted with methanoic acid

• A process whereby rubber is reacted with ammonia

Silica refractories are example for

• Acid

• Basic

• Neutral

• Magnesia