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During pyrolysis of alkanesC-C bonds bre...

During pyrolysis of alkanesC-C bonds break rather than C-H bonds Why?

Text Solution

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Bond energy of C-C bond is lower (by approximately 15 kcal) than C-H bonds
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Why do the C-C bonds rather than the C-H bonds break during pyrolysis of alkanes?

Why do the C-C bonds rather than the C-H bonds break during pyrolysis of alkanes?

Knowledge Check

  • Statement-I: Product of pyrolysis of Statement-II: C-H bond is weaker than C-D bond.

    A
    If both statement-1 & statement-2 are true & the statement-II is a correct explanation of the statement-I
    B
    If both statement-I & statement-II are true but statement-II si not a correct explanation of the statement-I
    C
    If statement-I is true but the statement-II is false.
    D
    If statement-I is false but the statement-II is true.

  • C-Cl bond is stronger than C-I bond , because

    A
    C-Cl bond is more ionic than C-I
    B
    C-Cl bond is polar covalent bond
    C
    C-Cl bond is more covalent than C-I
    D
    C-Cl bond length is longer than C-I

  • (A) in creaking of akances C-C bond is broken but not C-H bond (R ) Bond energy fo c-C bond is less than C-H bond .

    A
    if both (A) and (R ) are correct and ( R) is the correct explanation of the (A)
    B
    if both (A) and (R ) are correct but ( R) is not the correct explanation of the (A)
    C
    if (A) is correct but ( R) is incorrect
    D
    is (A) in incorrect but ( R) is correct

    • Similar Questions

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    Why do the C-C bonds rather than C-H bonds break during cracking of alkanes ?

    a. Why are alkanes inert ? b. Why the (C----C) bond rather than (C----H) bond breaks when alkanes are pyrolysed ? c. Why the combustion of alkanes does not occur at moderate temperature, although it is an exothermic process ?

    Why is C-C bond length in graphite shorter than in C-C bond length in diamond?

    The C-H bond is alkanes is

    The longest C-H bond is observed in:

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