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Why do alkynes not show geometrical isom...

Why do alkynes not show geometrical isomerism ?

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ICSE-HYDROCARBONS -TRUE OR FALSE TYPE QUESTIONS
  1. Comment over the following statement. Hydrocarbons may be both acyclic...

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  2. All alkanes possess sp^3 hybridised carbon atoms.

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  3. Why do alkynes not show geometrical isomerism ?

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  4. Do structural isomers possess similar chemical properties?

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  5. What are the four condition for aromaticity?

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  6. 1-butene cannot show geometrical isomerism.

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  7. Explain the cause of geometrical isomerism and state the properties of...

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  8. Hydrocarbons are the parent compounds of all other organic compounds.

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  9. Petroleum ether obtained on fractionation of petroleum contains pentan...

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  10. Find the valency if Chlorine.

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  11. A fuel has the same knocking property as a mixture of 70% isooctane (2...

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  12. The branching in an alkane increases its tendency of knocking. Comment...

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  13. What is leaded gasoline?

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  14. Assertion: Wurtz reaction is not preferred for the preparation of alka...

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  15. Removal of CO2 from a -COOH group is called decarboxylation.

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  16. Alkanes containing even number of carbon atoms possess higher melting ...

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  17. Write the chlorination reactions of ethene

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  18. Alkanes burn with a smoky flame.

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  19. CH2Br–CH2-CH2 Br is a vicinal dihalide. True/False

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  20. In the presence of peroxide addition of HBr to propene takes place acc...

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