A cleaned aluminium foil was placed in an aqueous solution of zinc sulphate when the aluminium foil was taken out of the zinc sulphate solution after 15 minutes it’s surface was coated with silvery grey deposit from the given observations what Ivan be concluded
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the silvery grey coating is actually the aluminium sulphate. since aluminium is more reactive than zinc hence, it displaces zinc from its sulphate solution and form aluminium sulphate.
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