Entry Test MCQ :: Aromatic Hydrocarbons
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21. |
In Friedel Craft Alkylation A?C?3 is used to generate |
A. |
Strong nucleophile |
B. |
Weak nucleophile |
C. |
Strong electrophile |
D. |
Weak electrophile |
Answer: Option C
Explanation:
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22. |
Acetophenone is a |
Answer: Option B
Explanation:
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23. |
Reacting bromine with benzene in the presence of sunlight will result in |
A. |
The rupturing of benzene ring |
B. |
Substitution reaction |
C. |
Addition reaction |
D. |
No-reaction |
Answer: Option C
Explanation:
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24. |
Benzene does not undergo |
A. |
Substitution reaction |
B. |
Addition reaction |
C. |
Polymerization reactions |
D. |
Oxidation reactions |
Answer: Option C
Explanation:
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25. |
During sulphonation of benzene H2SO4 generates the electrophile |
Answer: Option C
Explanation:
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26. |
Nitronium ion is |
Answer: Option D
Explanation:
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27. |
Which compound will readily undergo sulphonation? |
A. |
Benzene |
B. |
Nitro benzene |
C. |
Toluene |
D. |
Chlorobenzene |
Answer: Option C
Explanation:
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28. |
Benzene is heated in air with V2O5 at 450?C it undergoes |
A. |
Substitution reaction |
B. |
Addition reaction |
C. |
Elimination reaction |
D. |
Oxidation reaction |
Answer: Option D
Explanation:
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29. |
Which one of the following statement is not correct about benzene? |
A. |
On hydrogenation 208 KJ/mole is liberated |
B. |
C-H bond length in benzene is 1.09 A? |
C. |
Molecular mass of benzene is 78.108 |
D. |
Resonance energy of benzene is 150.5 K Cal/mole |
Answer: Option D
Explanation:
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30. |
The preparation of benzene from acetylene can also be said as |
A. |
Oxidation |
B. |
Polymerization |
C. |
Dehydration |
D. |
Condensation |
Answer: Option B
Explanation:
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