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C3:METALS AND NON-METALS

1.)1. Aluminium is used for making cooking utensils. Which of the following properties of aluminium are responsible for the same? (i) Good thermal conductivity (ii) Good electrical conductivity (iii) Ductility (iv) High melting point

a)(i) and (ii)

b)(i) and (iii) ा

c)(ii) and (ii)

d)(i) and (iv)

2.)2. The most abundant metal in the earth’s crust is

a)Iron

b)Aluminium

c)alcium

d) Sodium

3.). The poorest conductor of heat among metals is

a)Lead

b) Mercury

c)Calcium

d) Sodium

4.) Which property of metals is used for making bells and strings of musical instruments like Sitar and Violin?

a) Sonorousness

b) Malleability

c) Ductility

d) Conductivity

5.) Al2O3 + 2NaOH → …… + H2O

a) Al(OH)3

b) Na2O

c) NaAlO2

d) AlNaO2

6.) . Which of the following is the correct arrange-ment of the given metals in ascending order of their reactivity? Zinc, Iron, Magnesium, Sodium

a) Zinc > Iron > Magnesium > Sodium

b) Sodium > Magnesium > Iron > Zinc

c) c. Sodium > Zinc > Magnesium > Iron

d) Sodium > Magnesium > Zinc > Iron

7.) Which of the following pairs will give dis-placement reactions?

a) FeSO4 solution and Copper metal

b AgNO3 solution and Copper metal

cCuSO4 solution and Silver metalp>

d) NaCl solution and Copper metal

8.)Non-metals form covalent chlorides because

a) they can give electrons to chlorine

b they can share electrons with chlorine

c) they can give electrons to chlorine atoms to form chloride ionsp>

d) they cannot share electrons with chlorine atoms

9.) Which of the following oxide(s) of iron would be obtained on prolonged reaction of iron with steam?

aFeO

b) Fe2O3

cFe3O4

d)Fe2O3 and Fe2O4

10.) Which of tire following are not ionic compounds? (i) KCl (ii) HCl (iii) CCl4 (iv) NaCl

a) (i) and (ii)

b) (ii) and (iii)

c (iii) and (iv)p>

d) (i) and (iii)

11.)The electronic configuration of three elements X, Y and Z are as follows: X = 2, 4, Y = 2, 7, Z = 2,1 Which two elements will combine to form an ionic compound and write the correct formula,

a) X2Y

b) Yz

XZ3/sub

d) Y2Z

12.) The highly reactive metals like Sodium, Potas-sium, Magnesium, etc. are extracted by the

a) electrolysis of their molten chloride

belectrolysis of their molten oxides

c) reduction by aluminium

d) reduction by carbon

13.) Which of the following non-metal is lustrous?

Sulphur

b) Oxygen

Nitrogen

d) Iodine

14.) Example of an amphoteric oxide is:

a) Na2O

b) K2O

c) Al2O3

d) MgO

15.) Which one among the following is an acidic oxide?

a)Na2O

b) CO

cCO2

d) Al2O3>

Show Result

1. D
2. B
3. A
4. A
5. C
6. D
7. B
8. B
9. C
10. B
11. B
12. A
13. D
14. C
15. C

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