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Explain the stability of alkenes....

Explain the stability of alkenes.

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### Step-by-Step Solution: 1. **Understanding Alkene Stability**: - The stability of alkenes is influenced by the number of alpha-hydrogens present. Alpha-hydrogens are the hydrogens attached to the carbon atoms adjacent to the carbon-carbon double bond. 2. **Definition of Alpha-Hydrogens**: - Alpha-hydrogens are those that are bonded to the alpha-carbons, which are the carbons directly next to the double bond in an alkene structure. ...
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MODERN PUBLICATION-HYDROCARBONS-Revision Exercises (Short Answer Questions (Carrying2 or 3 marks))
  1. Why does benzene undergo electrophilic substitution reactions easily a...

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  2. How will you explain that there exists two varieties of 1,2-dichloroet...

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  3. Explain the stability of alkenes.

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  4. Why do alkenes show geometrical isomerism ?

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  5. What happens when (i) ethyl alcohol is heated in the presence of H(...

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  6. How will you detect the presence of double bond in a hydrocarbon?

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  7. What are substitution reactions? Give two examples of substitution rea...

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

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

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

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

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

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

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  14. Explain the mechanism of nitration of benzene.

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

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

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

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

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

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

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