IIT-JEE Exam

Compound (A), C8H9Br, gives a white precipitate
when warmed with alcoholic AgNO3. Oxidation
of (A) gives an acid (B), C8H6O4. (B) easily forms
anhydride on heating. Identify the compound (A).

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IIT-JEE Other Question

An organic compound A upon reacting with NH3
gives B. On heating, B gives C. C in presence of
KOH reacts with Br2 to give CH3CH2CH2. A is - A compound with molecular mass 180 is acylated
with CH3COCl to get a compound with molecular
mass 390. The number of amino groups present
per molecule of the former compound is -
(1) 4 (2) 6 (3) 2 (4) 5