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  3. Chemistry
  4. Consider the following reactions A xrightarrow[(ii) H2O+](i) CH3MgBr B xrightarrow[573 K]Cu2 -methyl - 2-butene The mass percentage of carbon in A is . Given 55

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Q. Consider the following reactions $A \xrightarrow[(ii)\,H_2O^+]{(i)\,CH_3MgBr} B \xrightarrow[573\,K]{Cu}$2 -methyl - 2-butene
The mass percentage of carbon in A is __________.
Given 55

JEE MainJEE Main 2020Aldehydes Ketones and Carboxylic Acids

Solution:

$C \Rightarrow 12\times4=48$
$H\Rightarrow 8\times1=8$
$O\Rightarrow 16\times1=16$
$total 72$
$\% \, of \, C=\frac{48}{72}\times100=66.66\%$

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