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Addition of HBr to propene yields 2-brom...

Addition of HBr to propene yields 2-bromopropane, while in the presence of benzoyl peroxide, the same reaction yields 1-bromopropane. Explain and give mechanism.

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MODERN PUBLICATION-HYDROCARBONS-Revision Exercises (Short Answer Questions (Carrying2 or 3 marks))
  1. What are substitution reactions? Give two examples of substitution rea...

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  2. Which of the following polymerises most readily and why? (i) Acetyl...

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  3. Addition of HBr to propene yields 2-bromopropane, while in the presenc...

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  4. How does ethylene react with : (i) bromine (ii) alkaline potass...

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  5. How does acetylene react with : (i) oxygen (ii) bromine (iii) o...

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  6. How will you convert benzene into: (i) bromobenzene (ii) berzone s...

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  7. Explain the mechanism of electrophilic addition reactions of alkenes.

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  8. Explain the mechanism of nitration of benzene.

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  9. Complete the reactions : (i) CH(3)-C-=CH+H(2) underset("quinoline")o...

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  10. Give the main products of the reactions : (a) C(6)H(6) underset(H(2)...

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  11. How will you convert: (a) acetylene to acetaldehyde (b) ethylene...

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  12. Write brief notes on: (i) Markovnikov's rule (ii) Peroxide effect.

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  13. Which out of ethylene or propylene is more reactive to the addition of...

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  14. Explain the terms substitution and addition reactions ? Methane gives ...

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  15. Why do alkenes undergo electrophilic addition reactions ? Explain the ...

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  16. How do you account for acidic nature of alkynes as compared to alkenes...

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  17. Discuss the general mechanism of the electrophilic substitution in ben...

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  18. Discuss the structure of benzene in terms of resonance and orbital con...

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  19. Why does benzene undergo electrophilic substitution reaction instead o...

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  20. How will you convert benzene into acetophenone ? Discuss the mechanism...

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