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16/02/2022 12:30 pm
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An unknown compound A has a molecular formula C4H6, when A is treated with an excess of Br2, a new substance B with formula C4H6Br2 is formed. A forms a white precipitate with ammonical silver nitrate solution. A may be
(a) Butyne-1
(b) Butyne-2
(c) Butene-1
(d) Butene-2
1 Answer
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16/02/2022 12:54 pm
Correct answer: (a) Butyne-1
Explanation:
Conversion of C4H6 to C4H6Br2 indicates that the compound is either butyne-1 or butyne-2. However, white precipitate with ammonical silver nitrate solution indicates that it is a terminal alkyne, i.e. butyne-1 and not butyne-2.