Question

Aluminium foil used for wrapping:
A. Food
B. Clothes
C. Plastic
D. Wires

Answer 1

Hint: Aluminium foil is the sheet form of Aluminium metal. Being a metal, they are easily converted into sheets due to their characteristic property of high malleability.

Complete step by step answer: Aluminium being a malleable metal it can be easily converted into sheets. These sheets are known as Aluminium foils. Aluminium foils are used to wrap food items. Due to the following reasons:
Aluminium being a less reactive metal they do not react with food thus the taste remains the same.
Due to the smooth shiny surface of the Aluminium they reflect back the heat radiation which is emitted by the food. In this way food remains warm for a longer duration of time.
High malleable metal thus can be used to make sheets which are easily used for wrapping without any difficulty.
The reflection of thermal ensures inherent aroma, flavour and moisture of the food.

So, the correct option is A.

Additional Information: Besides Aluminium foil, Muslin cloth, food grade brown paper and food grade parchment or butter paper can also be used to wrap foods. As aluminium is a poor insulator thereby doesn’t allow passage of heat very easily so to make the foil more effective, it is recommended to place it in fiberglass or ceramic tiffin boxes.

Note: Though Aluminium foil locks moisture and odour in and keeps the food fresh but hot and acidic foods should not be put in aluminium foil as the metal aluminium will leach into the item.