Question

which metal is used for packing food items and decorating sweets and why​

Answer 1

Alluninum foil paperis used to pack food

Answer 2

Answer:

silver leaf(varak) and gold leaf  is used to decorate sweets

Alluninum foil paperis used to pack food

Explanation:

Vark, also called varak (also silver leaf,German paper), is anyleaf composed of pure metals, typically silver but sometimes gold,[1] used on South Asian sweets. The silver is edible, though flavorless. Varak is made by pounding silver into sheets, a few micrometres (µm) thick, typically 0.2µm-0.8 µm. The sheets are typically backed with paper forsupport; this paper is peeled away before use. It is fragile and breaks into smaller pieces if handled withdirect skin contact. Those leaves in the 0.2 µm thickness tend to adhere to skinif handled directly (due to thickness close to inter-atomic distance)[clarificationneeded]. Vark sheets are laid or rolled over some South Asian sweets.

Aluminium is a reactive metal but it is still used for packing food articles/items as Aluminium is reactive metal before packing it has already reacted with oxygen and forms a protective layerof aluminium oxide

As it is already reacted it doesn't react with food stuff

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