Question

Very Short Answer Type Questions
1. State whether the following statement is true or false :
Milk is a pure substance. false
2. Name three mixtures found in nature.
3. Which of the following is a mixture ?
Salt, Air, Water, Alum, Sugar
4. Name one metal and one non-metal which exist as liquids at room temperature.
5. Name a metal which is soft and a non-metal which is hard.
6. Name a non-metal which is a good conductor of electricity.
7. Name a liquid which can be classified as a pure substance and conducts electricity. Mercun
8. Name one solid, one liquid and one gaseous non-metal.
9. Name the property :
(a) which allows metals to be hammered into thin sheets.
(b) which enables metals to be drawn into wires.
10. Which type of elements, metals or non-metals, show the property of brittleness?
11. What is meant by saying that metals are malleable and ductile ?
12. What is meant by saying that non-metals are brittle ?
13. What is meant by saying that metals are sonorous ?
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14. What is meant by saying that metals are lustrous ?
15. What is the general name of the materials which contain at least two pure substances and show th
of their constituents ? Mixtures​

Answer 1

Answer:

2) Air, Soil and water

3) Air and Water

4) Mercury is a liquid metal and bromine is a liquid non-metal which exist as liquid at room temperature.

5) Name a metal which is soft and a non-metal which is hard.

6) Graphite is a non-metal which is a good conductor of electricity.

7) Mercury is a liquid metal that can be classified as a pure substance and conducts electricity.

8) Carbon is a solid non-metal, bromine is a liquid non-metal and chlorine is a gaseous non-metal.

9) Malleability

(a) The property of metals which allows metals to be hammered into thin sheets is called Malleability. Due this unique property, metals can be flattened into thin sheets by hammering and rolling. (b) The property of metals which enables them to be drawn into wires is called Ductility.

10) Graphite is an example of nonmetal that is brittle. Brittleness is a material property which fractures when a material is subjected to stress but having a little tendency to deform before rupture. Non-metals elements show brittleness.

11) Malleability is the property of metal to be hammered into thin sheets. Ductility is the property to enable metals to be drawn into wires.

12) Brittle means easily break or shatter easily. Nonmetals are brittle in nature means we can break nonmetal by applying little energy. ... Whereas metals are hard, to break them we should apply more energy or some instruments. If you beat a metal with rod it is converted into a sheet. This property is called malleability.

13) This means that metals make a ringing sound when we strike them. The property by virtue of which metals make a ringing sound is called sonority.

14) Metals are lustrous because of the free electrons present in them. The free electrons can move freely in the metal causing any light incident on them to get reflected back.

15)  Mixtures are the materials which contain at least two pure substances and show the properties of the constituents.

Hope it is helpful !!!

Answer 2

Answer:

1) False

2)Air,Soil and Water

3)Water

4)non-metal =Bromine Metal= Mercury

5)Metal= Sodium Non- Metal = iodine

6) Graphite

7)Mercury

8)Carbon

9)A)Malleability B) Ductility

10)Graphite is an example of nonmetal that is brittle. Brittleness is a material property which fractures when a material is subjected to stress but having a little tendency to deform before rupture. Non-metals elements show brittleness.

11)Malleability is the property of metal to be hammered into thin sheets. Ductility is the property to enable metals to be drawn into wires.

12)Non-metals are brittle in nature, which means, they cannot be hammered into thin sheets. They will be broken into smaller pieces if hammered.

13)Sonorous: This means that metals make a ringing sound when we strike them. The property by virtue of which metals make a ringing sound is called sonority.

14)Metals are lustrous because of the free electrons present in them. The free electrons can move freely in the metal causing any light incident on them to get reflected back.

15)Mixtures are the materials which contain at least two pure substances and show the properties of the constituents.

From next time if you had to ask alot of questions then ask one by on don't ask all beacause people will answer some question only.

Pls mark as brainlist