Answers

2014-07-03T15:51:34+05:30
Pickle contains vinegar which is an acid
if pickle is stored in metal jars the acid it contains will react with the metal and hydrogen gas will be evolved.
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2014-07-03T15:56:02+05:30
Because it contains vinegar will react with aluminiunm because it is a metal and it will get poisonous and may cause food poisoning or other diseases

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