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  4. When C2H5OH is treated with acidified k2Cr2O7 to forms CH3CHO. It is an example of

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Q. When $C_2H_5OH$ is treated with acidified $k_2Cr_2O_7$ to forms $CH_3CHO$. It is an example of

Alcohols Phenols and Ethers

Solution:

Addition of oxygen or removal of hydrogen is termed as oxidation
$\underset{\text{Ethanol}}{C_2OH} \xrightarrow[{[O]}]{K_2Cr_2O_7 + alc .H_2SO_4} \underset{\text{Acetaldehyde}}{CH_3CH_3}$