State five uses of each, metals and non-metals. - Vidyadip

Question

State five uses of each, metals and non$-$metals.

✓

Answer

Uses of metals are:
$i.$ Metals are used in making machinery and automobiles.
$ii.$ Metals are used in making aeroplanes and trains.
$iii.$ Metals are used in making satellites.
$iv.$ Metals are used in making industrial gadgets.
$v.$ Metals are used in making cooking utensils and water boilers.
Uses of non$-$metals are:
$i.$ Non metals are used in fertilisers to enhance the growth of plants.
$ii.$ Non metals used as a food preservative.
$iii.$ Non metals used in respiration.
$iv.$ Non metals used in firecrackers.
$v.$ Non metals used in water purification process.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "questions in details [4 marks ]" from Materials : Metals and Non-Metals→Materials : Metals and Non-Metals — all question types→Science STD 8 question papers→Gujarat Board STD 8 question papers→Gujarat Board question paper generator→

Similar questions

Describe an activity to show that the incident ray, the reflected ray and the normal at the point of incidence lie in the same plane.

Define frictional force (or friction).

Explain circumstances leading to acid rain. How does acid rain affect us?

How can you help reduce air pollution at the individual level?

The animal $A$ which is classified as an amphibian lays eggs in pond water. The hatching of its eggs produces a tailed$-$form $B$ which looks very different from the animal $A$. The form $B$ then undergoes a change $C$ and gets converted into animal $A$.
$1.$ Name $(i)$ animal $A$ and $(ii)$ form $B$.
$2.$ What is the change $C$ known as?
$3.$ Name the breathing organs of $A$.
$4.$ What are the breathing organs of $B$?

Draw a labeled diagram of the human female reproductive system.
$1.$ Where in the human body does an egg $($or ovum$)$ get fertilized?
$2.$ Where does a fertilized egg $($or zygote$)$ develop into a baby in the human body?

Draw a labelled diagram of the human eye. Label the following parts on this diagram: Cornea, Iris, Pupil, Ciliary muscles, Eye-lens, Retina, Optic nerve, Blind spot.

The synthetic fibre $A$ is chemically a polyamide whereas the synthetic fibre $B$ contains a large number of ester groups. Another synthetic fibre $C$ is made of a polymer $D$ which consists of a number of glucose units joined one after the other.
$a.$ Which fibre could be $(i)$ terylene $(ii)$ rayon, and $(iii)$ nylon?
$b.$ Name the polymer $D.$
$c.$ Which fibre ($A, B$ or $C$) is prepared from a natural raw material?
$d.$ Which fibre ($A, B$ or $C$) contains the same type of groups as those in a $PET$ jar?

Explain extinction of animals with examples.

A strip of impure copper metal is given to you. Describe briefly how you will purify it by using the chemical effect of electric current. Draw a labelled diagram of the experimental set up used for this purpose.