Ethanol, when reacted with PCI5 , gave A, POCl3, and HCI. A reacts with AgNO2 to form B and AgCl. A and B are respectively:
Correct answer: C. C2H5Cl and C2H5NO2
- A. C2H5Cl and C2H5OC2H5
- B. C2H6 and C2H5OC2H5
- C. C2H5Cl and C2H5NO2
- D. C2H6 and C2H5NO2
- E. C2H6 and C2H6NO
Explanation
The sequence of reactions begins with ethanol (C2H5OH) reacting with phosphorus pentachloride (PCl5), resulting in the formation of ethyl chloride (C2H5Cl), phosphorus oxychloride (POCl3), and hydrochloric acid (HCl). The ethyl chloride then reacts with silver nitrate (AgNO2), producing nitroethane (C2H5NO2) and silver chloride (AgCl). The correct products for A and B in the sequence are thus ethyl chloride and nitroethane, respectively. The other options involve incorrect products, such as diethyl ether, ethane, or incorrect formulas, and do not match the reaction steps provided.
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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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