Advertisements
Advertisements
Question
Give reasons for the following.
Aluminium foils are used to wrap food items.
Solution
Aluminium foils are used to wrap food items because aluminium metal is malleable. Therefore, it can be beaten into thin foils.
APPEARS IN
RELATED QUESTIONS
Match the substances given in Column A with their uses given in Column B.
A | B | ||
1 | Gold | a | Thermometers |
2 | Iron | b | Electric wire |
3 | Aluminium | c | Wrapping food |
4 | Carbon | d | Jewellery |
5 | Copper | e | Machinery |
6 | Mercury | f | Fuel |
Which property of copper and aluminium makes them suitable for making electric wires?
Name the metal which is the best conductor of heat and electricity.
Fill in the blank
Tungsten metal is a poor conductor of _______
State two important uses of following non-metal
iodine
`Na _____ → Na^+`
Name:
two metals which are soft
Which metal occurs as an oxide also gives the name of their respective ore.
Distinguish between the physical properties of metals and non-metals with reference to:
(a) lusture (b) malleability (c) ductility (d) tensile strength (e) sonority (f) conduction of heat and electricity (g) melting and boiling point (h) density.
Which non-metal is essential for our life and all living beings?