Question

5. Nature of metal oxide is:

b. Basic b) Acidic

c) Neutral d) None of these

6. Non- metal, solution of which is used as an antiseptic onwounds.

a. Potassium Dichromate b) Potassium permanganate

c) Sodium chloride d) Copper Sulphate

7. Name the following type of reaction :-

Copper sulphate (CuSo4) + Zinc (Zn) = Zinc Sulphate (Znso4) + Cu

(Copper)

(Displacement / addition)

8. Write any three differences between metals and non-metals on the

basis of following characters -

Property Metal Non-Metal

1) Appearance

2) Conduction of heat

3) Malleability

4) Ductility

9. Write one word for the following:

i) Materials having properties of both metalsand non-metals .

ii) The property of metals due to which they produce sound .

iii) The property of metals due to which they can be beaten into sheets .

iv) Nature of metal oxides is .

v) Thepropertyofmetalsby virtue ofwhichtheycanbedrawnintowires .

10. Answer the following questions:

1. What are the elements called which can neither fit with metals nor non-metals?

________________________________________________________________________________________

2. Which of the following metals is the best conductor of heat and electricity?

Gold, Silver, Copper, Aluminum

3. Which property of metals makes them useful as ringing bells?

_______________________________________________________________________________________

4. Arrange the following elements in order of increasing reactivity.

Sodium, Magnesium, Copper, Zinc, Aluminum


Plz tell anyone i will mark brainliest and give 21 points.​

Answer 1

Answer:

Answer of 2nd question is copper

Answer of 9th question

1. metaloids
2. sonority
3. Ductility
4. I don't know
5. malleability

Explanation:

Copper is used for making electric wires