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Give there reason a) alluminium foils …

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Give there reason a) alluminium foils are used to wrap food b)copper can not displaced zinc from its salt solution

Posted by Paresh Khamari 6 years ago

CBSE > Class 08 > Science

1 answers

Yogita Ingle 6 years ago

Aluminium foils are used to wrap food items because aluminium metal is malleable. Therefore, it can be beaten into thin foils.

A metal candisplace a less reactive metal from its salt in an aqueous solution. But zinc is more reactive than copper. Therefore, copper cannot displace zinc from its salt solution. Cu_(s) + ZnSO_{4 (aq)} → No reaction

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