Question

nswer the following questions :
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. Mercury
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 ?
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 the propu
of their constituents ? Mixtures​

Answer 1

Answer:

1) False

2) Air,soil and water.

3) Air is a mixture of various gases.

4) Metal:-Mercury, Non-Metal:-Bromine.

5) Metal:-Sodium and Non-Metal:-Diamond.

6) Graphite.

7) Mercury.

8) Solid-Carbon,Liquid-Bromine,Gas-Chlorine.

9) (a) Mellability

(b) Ductility

10) Metals

11) Refer to question no. 9

12) It means that non-metals cannot be beaten I to thin sheets

13) It means that metals produce sound.

14) It means that metals have a shiny surface.

15) Mixtures.