想請問，
金莎巧克力的金色包裝紙，是否含有真正的黃金？？
如果收集很大量，用硝酸溶，就能收集到一點點的黃金嗎？？
或是所有金色的紙其實都含有金？還是其實有代替品？例如愚人金？？
或是電鍍金色的產品才有含金？只是回收的成本太高，能再提煉出來的太少？？
先謝謝解答了~~~~
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