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In electrophilic substitution of benzene...

In electrophilic substitution of benzene

A

the first step is exothermic but the second step is endothermic

B

the first step is endothermic but the second step is exothermic

C

both the steps are exothermic

D

both the steps are endothermic

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The correct Answer is:
B
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CHHAYA PUBLICATION-HYDROCARBONS-MCQ HOTSPOT
  1. The compound which is most reactiv in case of electrophilic attack is

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  2. Benzene does not form addition compound because

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  3. In electrophilic substitution of benzene

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  4. The method suitable for converting benzene into propyl benzene is

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  5. An aromatic compound of molecular formula C8H(10) reacts with a mixtur...

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  6. Nitrobenzene is prepared from benzene by using conc. HNO3 and conc.H2S...

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  7. On passing excess Cl2 (g) through boiling toluene, the only compound t...

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  8. Which of given participates in Friedel-Crafts reaction

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  9. In which of the following compounds the ring on the left side undergoe...

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  10. Acidity of which of the following compound is quite high compared to t...

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  11. Bromination takes place most rapidly in

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  12. In case of trisubstituted benzene , if the substituents are different,...

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  13. Chemical formula of Cetane is

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  14. Which of the following gets converted into an explosive when it is tur...

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  15. The product which is not obtained when ethylene reacts with KI mixed w...

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  16. Which of the following does not form a sooty flame-

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  17. Which of the following statement is incorrect -

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  18. Which of the given is a benzenoid aromatic compound -

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  19. Gas used in Hawker's lamp for emitting bright light is

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  20. Benzene when subjected to ozonolysis (O3 followed by Zn//H2O) forms -

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