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An aromatic amine(A) was treated with alcoholic potash and another compound(Y) when foul smelling gas was formed with formula C₆H₅NC. Y was formed by reacting a compound(Z) with Cl₂ in the presence of slaked lime. The compound(Z) is
- a)C₆H₅NH₂
- b)C₂H₅OH
- c)CH₃OCH₃
- d)CHCl₃
Correct answer is option 'B'. Can you explain this answer?
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Verified Answer
An aromatic amine(A) was treated with alcoholic potash and another com...
In Hoffmann's carbylamine test (also known as Isocyanide test), aliphatic or aromatic primary amine (A) is heated with chloroform (compound Y) in presence of alcoholic potassium hydroxide to give foul smelling alkyl/aryl isocyanide or carbylamine. Compound Y (chloroform) is obtained by reaction of compound Z(CH3COCH3 ) with chlorine in presence of slaked lime.
Most Upvoted Answer
An aromatic amine(A) was treated with alcoholic potash and another com...
To determine the compound (Z) in the given reaction sequence, let's analyze each step:
1. Aromatic amine (A) treated with alcoholic potash:
When an aromatic amine (A) is treated with alcoholic potash (potassium hydroxide dissolved in alcohol), it undergoes a reaction known as the Hoffmann degradation. This reaction results in the formation of an isocyanide (foul-smelling gas with formula C₆H₅NC).
2. Compound (Y) formed by reacting compound (Z) with Cl₂ in the presence of slaked lime:
The compound (Z) reacts with chlorine gas (Cl₂) in the presence of slaked lime (calcium hydroxide) to form compound (Y). This reaction is known as the chlorination reaction.
Now, let's analyze the given options and determine the compound (Z):
a) C₆H₅NH₂: This is an aromatic amine and does not fit the description of compound (Z) that reacts with Cl₂ to form compound (Y). Therefore, option 'a' is not correct.
b) C₂H₅OH: This is ethanol, an alcohol. When treated with alcoholic potash, it does not produce any foul-smelling gas. Also, it does not react with Cl₂ in the presence of slaked lime to form compound (Y). Therefore, option 'b' is not correct.
c) CH₃OCH₃: This is dimethyl ether, an ether. It does not react with alcoholic potash to form a foul-smelling gas. Also, it does not react with Cl₂ in the presence of slaked lime to form compound (Y). Therefore, option 'c' is not correct.
d) CHCl₃: This is chloroform, a halogenated compound. It does not react with alcoholic potash to form a foul-smelling gas. However, it does react with Cl₂ in the presence of slaked lime to form trichloromethane (CHCl₃), which fits the description of compound (Y). Therefore, option 'd' is not correct.
Based on the analysis, the correct answer is option 'B', C₂H₅OH (ethanol), as it does not react with alcoholic potash or Cl₂ in the presence of slaked lime to form the given compounds.
1. Aromatic amine (A) treated with alcoholic potash:
When an aromatic amine (A) is treated with alcoholic potash (potassium hydroxide dissolved in alcohol), it undergoes a reaction known as the Hoffmann degradation. This reaction results in the formation of an isocyanide (foul-smelling gas with formula C₆H₅NC).
2. Compound (Y) formed by reacting compound (Z) with Cl₂ in the presence of slaked lime:
The compound (Z) reacts with chlorine gas (Cl₂) in the presence of slaked lime (calcium hydroxide) to form compound (Y). This reaction is known as the chlorination reaction.
Now, let's analyze the given options and determine the compound (Z):
a) C₆H₅NH₂: This is an aromatic amine and does not fit the description of compound (Z) that reacts with Cl₂ to form compound (Y). Therefore, option 'a' is not correct.
b) C₂H₅OH: This is ethanol, an alcohol. When treated with alcoholic potash, it does not produce any foul-smelling gas. Also, it does not react with Cl₂ in the presence of slaked lime to form compound (Y). Therefore, option 'b' is not correct.
c) CH₃OCH₃: This is dimethyl ether, an ether. It does not react with alcoholic potash to form a foul-smelling gas. Also, it does not react with Cl₂ in the presence of slaked lime to form compound (Y). Therefore, option 'c' is not correct.
d) CHCl₃: This is chloroform, a halogenated compound. It does not react with alcoholic potash to form a foul-smelling gas. However, it does react with Cl₂ in the presence of slaked lime to form trichloromethane (CHCl₃), which fits the description of compound (Y). Therefore, option 'd' is not correct.
Based on the analysis, the correct answer is option 'B', C₂H₅OH (ethanol), as it does not react with alcoholic potash or Cl₂ in the presence of slaked lime to form the given compounds.
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An aromatic amine(A) was treated with alcoholic potash and another compound(Y) when foul smelling gas was formed with formula C₆H₅NC. Y was formed by reacting a compound(Z) with Cl₂ in the presence of slaked lime. The compound(Z) isa)C₆H₅NH₂b)C₂H₅OHc)CH₃OCH₃d)CHCl₃Correct answer is option 'B'. Can you explain this answer?
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An aromatic amine(A) was treated with alcoholic potash and another compound(Y) when foul smelling gas was formed with formula C₆H₅NC. Y was formed by reacting a compound(Z) with Cl₂ in the presence of slaked lime. The compound(Z) isa)C₆H₅NH₂b)C₂H₅OHc)CH₃OCH₃d)CHCl₃Correct answer is option 'B'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about An aromatic amine(A) was treated with alcoholic potash and another compound(Y) when foul smelling gas was formed with formula C₆H₅NC. Y was formed by reacting a compound(Z) with Cl₂ in the presence of slaked lime. The compound(Z) isa)C₆H₅NH₂b)C₂H₅OHc)CH₃OCH₃d)CHCl₃Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for An aromatic amine(A) was treated with alcoholic potash and another compound(Y) when foul smelling gas was formed with formula C₆H₅NC. Y was formed by reacting a compound(Z) with Cl₂ in the presence of slaked lime. The compound(Z) isa)C₆H₅NH₂b)C₂H₅OHc)CH₃OCH₃d)CHCl₃Correct answer is option 'B'. Can you explain this answer?.
An aromatic amine(A) was treated with alcoholic potash and another compound(Y) when foul smelling gas was formed with formula C₆H₅NC. Y was formed by reacting a compound(Z) with Cl₂ in the presence of slaked lime. The compound(Z) isa)C₆H₅NH₂b)C₂H₅OHc)CH₃OCH₃d)CHCl₃Correct answer is option 'B'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about An aromatic amine(A) was treated with alcoholic potash and another compound(Y) when foul smelling gas was formed with formula C₆H₅NC. Y was formed by reacting a compound(Z) with Cl₂ in the presence of slaked lime. The compound(Z) isa)C₆H₅NH₂b)C₂H₅OHc)CH₃OCH₃d)CHCl₃Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for An aromatic amine(A) was treated with alcoholic potash and another compound(Y) when foul smelling gas was formed with formula C₆H₅NC. Y was formed by reacting a compound(Z) with Cl₂ in the presence of slaked lime. The compound(Z) isa)C₆H₅NH₂b)C₂H₅OHc)CH₃OCH₃d)CHCl₃Correct answer is option 'B'. Can you explain this answer?.
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