University of BRISTOL   Amy Lovelock 21/06/2006    






Is it safe?


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Question 1

Who did not first dry distil gum benzoin?

a) Nostradamus

b) Vigenère

c) Wöhler

d) Ruscelli


Question 2

What E number is benzoic acid?

a) 201

b) 210

c) 211

d) 212

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Question 3

What is the melting point for sodium benzoate?

a) Greater than 573K

b) Greater than 373K

c) Greater than 773K

d) Greater than 873K


Question 4

Which synthesis of sodium benzoate is particularly environmentally friendly?


a) Oxidising naphthalene

b) Mixing toluene with nitric acid

c) Hydrolysing benzotrichloride

d) None of the above!

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Question 5

How long does it take for a small dose of sodium benzoate to completely leave the body?

a) 4 hours

b) 6 hours

c) 10 hours

d) 12 hours



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