Organic 6 wrong answers Flashcards

1
Q

when is an alkene an E isomer

A

when the two high priority groups attached are on the same side of the carbon double bond

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2
Q

ethene reacts with chlorine to produce?
give the structural formula

A

ClH2CH2Cl

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3
Q

what family is formed when ethene reacts with aqueous potassium manganate

A

alcohol

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4
Q

state why the empirical formula of a poly(alkane) is the same as that of the monomer from which it is produced

A

they have the same C:H ratio in their simplest forms

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5
Q

what the atom economy for the production of a poly(alkene) from an alkene and why?

A

100% because there are no waste products formed in addition polymerisation

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6
Q

what are three problems as a result of incomplete combustion

A

-production of carbon monoxide which is poisonous/toxic gas
-unburned hydrocarbons react together to form compounds which are toxic
-Carbon particulate are released into the atmosphere

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7
Q

main problem from complete combustion of alkane fuels

A

carbon dioxide is a greenhouse gas, that traps heat from the earth, reradiating it to the earth and damage the ozone

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8
Q

what does a single headed curly arrow mean

A

denotes 1 electron pair is moving

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9
Q

what does a double headed curly arrow mean

A

denotes a lone electron pair

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10
Q

suggest why a small amount of UV light can result in the formation of a large amount of product (use chlorine)

A

chlorine radical is regenerated by the propagation each time a molecule of product is formed

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11
Q

scientists never detect molecular hydrogen H2 amongst the products of the chlorination of methane
suggest why?

A

UV light does not have enough energy to break C-H bonds
so no H free radicals, therefore they could not combine to make H2

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12
Q
A
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