K2Cr2O7/H2SO4 generates:
Correct answer: C. Nascent oxygen (O)
- A. Oxygen
- B. Hydrogen
- C. Nascent oxygen (O)
- D. Nascent hydrogen (H)
Explanation
The reaction involving potassium dichromate (K2Cr2O7) and sulfuric acid (H2SO4) does indeed generate nascent oxygen (O).The overall reaction is typically represented as the oxidation of an organic compound (usually an alcohol or aldehyde) in the presence of potassium dichromate and sulfuric acid. For instance, ethanol (CH3CH2OH) can be oxidized to acetic acid (CH3COOH) in this reaction.
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About Alcohols and Phenols
Alcohols are classified as primary, secondary or tertiary and studied through their hydrogen bonding, acidity, oxidation and reactions with active metals, acids and halogenating agents. Phenols require separate treatment because the hydroxyl group is attached to an aromatic ring, making their acidity and electrophilic substitution different from ordinary alcohols.
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