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.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
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.
Practise Alcohols and Phenols
535 free Alcohols and Phenols MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Chemistry questions like this
Chemistry is on 14 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Alcohols and Phenols questions
Which of the following is TRUE regarding Methyl Alcohol?
The test used to distinguish among primary, secondary, and tertiary alcohols is:
Which of the following compounds is solid at room temperature?
Dehydration of ethanol at 140 oC in the presence of concentrated H2SO4 gives:
Phenol reacts with CH3COCl to give:
By fermentation process of starch and by the catalytic enzyme, _ is produced.