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In the presence of peroxide, hydrogen ch...

In the presence of peroxide, hydrogen chloride and hydrogen iodide do not give anti`-`Markovnikov's addition to alkenes because `:`

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(a) The `H-Cl` bond is stronger than `H-Br`.
(b) The `H-1` bond is weaker than `H-Br` bond. It is broken by the alkoxy free radicals obtained from peroxide, but the addition of iodine atom on alkene is endothermic as copared to `Br` atom therefore iodine atoms so formed combine with each other to yield iodine.
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ALLEN-ALKENE, ALKANE & ALKYNE -EXCERSISE-3
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  2. True or False

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  3. Heating of beta-hydroxy acid gives lactones.

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  4. Hunsdiecker reaction involve free radical in intermediate steps.

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  5. Benzoic acid is stronger than methanoic acid but weaker than ethanoic ...

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  6. Acid halides are more reactive than acid amides towards the hydrolysis...

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  7. What happens when sodium benzoate is heated with soda lime?

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  8. pK(a) and K(a) of an acid are connected by the relation.......

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  9. Fill in the blank by choosing the appropriate word/words from those gi...

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  10. Hell-Volhard-Zelinsky reaction involves the replacement of an ...........

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  11. Carboxylic acids may be prepared by the reaction of Grigrand reagents ...

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  12. Statement-I: Unlike the gtC=O group of aldehydes and ketones, the C=O ...

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  13. Statement-I: CH(3)COCH(2)COOC(2)H(5) will give iodoform test. Becau...

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  14. Statement-1: Acetic acid does not undergo haloform test. and State...

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  15. Statement-I: Benzoic acid on nitration will give m- nitro benzoic ac...

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  16. Statement-I: Acyl halide are more reactive than acid substance amide t...

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  17. Amides undergo hydrolysis to yield carboxylic acid plus amine on heati...

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  18. Amides undergo hydrolysis to yield carboxylic acid plus amine on heati...

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  19. Acid halides are more reactive than acid amides towards the hydrolysis...

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  20. When is treated with two equivalent of methyl magnesium iodide a...

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  21. Ester gives nucleophilic addition reaction followed by elimination rea...

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