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प्रश्न
Can you store pickle in an aluminium utensil? Give reason.
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उत्तर
No, we cannot store the lemon pickle in aluminium utensil because aluminium is a metal and lemon is acidic. The acids react with metals to give hydrogen which would spoil the food and makes it unfit to use.
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संबंधित प्रश्न
State two important uses of following metals:
Uses of iron
Write scientific reason.
Sodium is always kept in kerosene.
Match the alloys given in column I to the uses given in column II :
| Column I | Column II |
| (i) Duralumin | A. Electrical fuse |
| (ii) Solder | B. Surgical instruments |
| (iii) Brass | C. Aircraft body |
| (iv) Stainless Steel | D. Decorative articles |
With reference to the following metals state their use in daily life metal:
iron
Name the following:
A halogen which is a solid at room temperature.
The most abundant metal in the earth’s crust is ____________.
______ is the first scientist who used the term element.
Metals are usually solids or gases at room temperature.
Metals and non–metals are used for making ______, ______ and ______.
Why do metals appear shiny?
