Correct answer Carries: 4.
Wrong Answer Carries: -1.
The amide that produces propanamine via Hoffmann bromamide reaction is:
Hoffmann bromamide reaction converts an amide (\( \ce{RCONH2} \)) to an amine with one less carbon. For propanamine (\( \ce{CH3CH2CH2NH2} \), 3 carbons), the amide must have 4 carbons: butanamide (\( \ce{CH3CH2CH2CONH2} \)).
Which amine produces a yellow oily compound when treated with \( \ce{HNO2} \)?
Secondary amines like \( \ce{(CH3)2NH} \) form nitrosamines (yellow oily liquids) with \( \ce{HNO2} \), as per the PDF’s chemical reactions.
Which method reduces \( \ce{RCONH2} \) to \( \ce{RNH2} \) with one less carbon?
The Hoffmann bromamide reaction converts an amide (\( \ce{RCONH2} \)) to an amine (\( \ce{RNH2} \)) with one less carbon, as per the PDF.
The product of \( \ce{C6H5NO2} \) reduction with \( \ce{Sn/HCl} \) is:
Reduction of nitrobenzene (\( \ce{C6H5NO2} \)) with \( \ce{Sn/HCl} \) yields aniline (\( \ce{C6H5NH2} \)), as per the PDF’s preparation methods.
Which amine reacts with \( \ce{CHCl3} \) and alcoholic KOH to produce a compound with a characteristic odor?
Primary aliphatic amines like \( \ce{CH3CH2NH2} \) form isocyanides (foul odor) in the carbylamine reaction, as per the PDF’s chemical properties.
The product of \( \ce{CH3NH2} \) with \( \ce{CHCl3} \) and alcoholic KOH is:
Methylamine (\( \ce{CH3NH2} \)) forms methyl isocyanide (\( \ce{CH3NC} \)) in the carbylamine reaction, as per the PDF’s chemical properties.
Which amine shows the least solubility in water?
Tertiary amines like \( \ce{(CH3CH2CH2)3N} \) with long alkyl chains have minimal hydrogen bonding and the highest hydrophobicity, reducing solubility, as per the PDF.
Which reagent converts aniline to acetanilide?
Acetyl chloride (\( \ce{CH3COCl} \)) acetylates aniline to form acetanilide (\( \ce{C6H5NHCOCH3} \)), as per the PDF’s chemical properties.
Which of the following amines can form hydrogen bonds with water?
Primary amines like \( \ce{CH3CH2NH2} \) have N-H bonds that can form hydrogen bonds with water, enhancing solubility, as per the PDF’s physical properties.
The product of \( \ce{CH3CH2NH2} \) reacting with \( \ce{HNO2} \) at 273-278 K is:
Ethylamine (\( \ce{CH3CH2NH2} \)) reacts with \( \ce{HNO2} \) to form ethanol (\( \ce{CH3CH2OH} \)) and \( \ce{N2} \), as per the PDF’s chemical properties.
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