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Standard XII
Chemistry
Catalytic Hydrogenation
Question

With the help of the following equations and data choose the wrong statement.
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  1. Thermal cracking of (CH) bond of methane occurs at 1500 K and that of (CH) bond of ethane breaks at 800900 K.
  2. During homolysis of ethane at high temperature, the (CC) bond breaks more radily than (CH) bonds.
  3. During the cracking of n-butane, reaction (IV) occurs more readily than reaction (V).
  4. Formation of CH3CH2 radical by reaction (II) will take place at lower temperature than the formation of C2H5 radical by reaction (IV).

A
Formation of CH3CH2 radical by reaction (II) will take place at lower temperature than the formation of C2H5 radical by reaction (IV).
B
During the cracking of n-butane, reaction (IV) occurs more readily than reaction (V).
C
Thermal cracking of (CH) bond of methane occurs at 1500 K and that of (CH) bond of ethane breaks at 800900 K.
D
During homolysis of ethane at high temperature, the (CC) bond breaks more radily than (CH) bonds.
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Solution
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The option (D) represents wrong statement.
Formation of CH3CH2 radical by reaction (II) will take place at lower temperature than the formation of C2H5radical by reaction (IV).

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