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Quiz

Lesson 4: Aromatic Hydrocarbons and Benzene Chemistry — Picture questions (exam style)

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1.
Study the scheme. Which option is correct?
Study the scheme. Which option is correct?
(C): 4-bromophenol, (B): phenol
(C): bromobenzene, (B): phenol
(C): bromobenzene, (B): sodium benzoate
(C): 2,4,6-tribromophenol, (B): phenol
2.
Starting from 9.2 g of C₆H₆ in the sequence shown (yield of each step on its arrow, molar masses in brackets). Which option is correct?
Starting from 9.2 g of C₆H₆ in the sequence shown (yield of each step on its arrow, molar masses in brackets). Which option is correct?
mass of C₆H₅NH₂ = 11 g, overall yield = 80%
mass of C₆H₅NH₂ = 8.78 g, overall yield = 90%
mass of C₆H₅NH₂ = 8.78 g, overall yield = 80%
mass of C₆H₅NH₂ = 7.36 g, overall yield = 90%
3.
Which reagents/conditions bring about the conversion shown?
Which reagents/conditions bring about the conversion shown?
Sn / HCl
3Cl₂ / UV
C₂H₅Cl / AlCl₃
3H₂ / Ni
4.
15.6 g of benzene is converted into C₆H₅Br with 100% yield. What mass of product is obtained? (C₆H₆ = 78, C₆H₅Br = 157)
15.6 g of benzene is converted into C₆H₅Br with 100% yield. What mass of product is obtained? (C₆H₆ = 78, C₆H₅Br = 157)
66.3 g
15.6 g
31.4 g
54.6 g
5.
The table gives enthalpies of hydrogenation. Calculate the delocalisation (resonance) energy of benzene.
The table gives enthalpies of hydrogenation. Calculate the delocalisation (resonance) energy of benzene.
354 kJ/mol
149 kJ/mol
205 kJ/mol
31 kJ/mol
6.
Which reagents/conditions bring about the conversion shown?
Which reagents/conditions bring about the conversion shown?
CH₃Cl / AlCl₃
Cl₂ / UV
CH₃COCl / AlCl₃
3H₂ / Ni
7.
What is the organic product (?) of the reaction shown?
What is the organic product (?) of the reaction shown?
nitrobenzene
methylbenzene (toluene)
chlorobenzene
benzoic acid
8.
Starting from 2.8 g of C₆H₆ in the sequence shown (yield of each step on its arrow, molar masses in brackets). Which option is correct?
Starting from 2.8 g of C₆H₆ in the sequence shown (yield of each step on its arrow, molar masses in brackets). Which option is correct?
mass of C₆H₅COOCH₃ = 4.88 g, overall yield = 63.2%
mass of C₆H₅COOCH₃ = 4.88 g, overall yield = 70%
mass of C₆H₅COOCH₃ = 4.88 g, overall yield = 86.7%
mass of C₆H₅COOCH₃ = 3.08 g, overall yield = 63.2%
9.
Starting from 9.2 g of C₆H₆ in the sequence shown (yield of each step on its arrow, molar masses in brackets). Which option is correct?
Starting from 9.2 g of C₆H₆ in the sequence shown (yield of each step on its arrow, molar masses in brackets). Which option is correct?
mass of C₆H₂Br₃OH = 20.5 g, overall yield = 70%
mass of C₆H₂Br₃OH = 20.5 g, overall yield = 52.5%
mass of C₆H₂Br₃OH = 20.5 g, overall yield = 62.5%
mass of C₆H₂Br₃OH = 20.5 g, overall yield = 81.7%
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