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Class 10 Metals and Non Metals Important questions-2


In this page we have Important Questions for Class 10 Metals and Non Metals -2 . Hope you like them and do not forget to like , social shar and comment at the end of the page.

Multiple Choice questions



Question 1

Which of the following metals cannot be extracted using smelting?

(a) Fe                             
(b) Al

© Zn                        
(d) Pb

Question 2

In general, the number of electrons in the outermost shell of a metal atom is
(a) 1
(b) 1 to 3
(c) 5 to 8
(d) 8

Question 3

Aluminum is used for making cooking utensils. Which of the following properties of aluminum 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 (iii)

d) (i) and (iv)


Question 4

Two Statement are made

Statement A: Zinc is used in the galvanization of iron

Statement B: Its coating on Iron articles increasing the life of it by protecting it from rusting

(a)Statement A is correct   only                                 
(b) Statement A is correct   only                                
(c) Both Statement A and B are correct                                                     
(d) Both Statement A and B are incorrect

Question 5

Hematite is an ore of

(a) iron

(b) aluminum

(c) copper

(d) tin

Question 6

Metals are refined by using different methods. Which of the following metals are refined by electrolytic refining?

a) Au

b) Cu

c) Na

d) K

Question 7

Copper sulphate solution can be easily kept in a container made of

(a)Lead                             
(b) Zinc

(c) Silver                        
(d) Aluminum

Question 8

Blue gold is an alloy of

(a)Gold and aluminum                            
(b) Gold and indium                           
(c) Gold and silver                 
(d) Gold and copper

Question 9

Which of the following is incorrect?

(a)Zinc Oxide is called as amphoteric oxide                              
(b) Silicon counts among metalloids

(c) Sodium is kept open in air                               
(d) Metals conduct electricity

Question 10

Which metal can be displaced by copper from its salt solution?

(a)Silver                                 
(b) Zinc

(c) Iron                                
(d) Silver

Question 11

Which of the following oxide cannot be reduced with carbon to obtain the metal?

(a)MnO2                    
(b) Cr2O3

(c) Al2O3                                       
(d)All the above

Question 12

Which is correct order as per the reactivity of the metals

(a) Zn > Fe > Cu > Ag                               
(b) Fe > Zn > Cu > Ag

(c) Cu > Zn > Fe > Ag                             
(d) Zn > Cu > Fe > Ag

Question 13

Although metals form basic oxides, which of the following metals form an amphoteric oxide?

a) Al

b) Ca

c) Na

d) Cu

Question 14

Which of the following non-metal is good conductor of electricity?
(a) Graphite
(b) Phosphorus
(c) Hydrogen
(d) Bromine

Question 15

Which among the following alloys contain mercury as one of its constituents?   
a) Stainless steel

b) Alnico

c) Solder

d) Zinc amalgam


Question 16                            

Two statement are made

Statement A: The lustre of a metal is due to presence of free electrons

Statement B: Metals conducts heat

(a) Statement A is correct only

(b) Statement B is correct only

(c) Statement A and B both are correct

(d) Statement A and B both are incorrect

Question 17

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

a) FeO

b) Fe2O3

c) Fe3O4

d) Fe2O3 and Fe3O

Question 18

Which of the following is true?

  (a) Color of basic copper carbonate is green                                                
  (b) Malachite is an ore of Copper

  (c) Aluminum is more reactive than Copper                                           
  (d) All the above

Question 19

The ability of metals to be drawn into thin wire is known as

a) Ductility

b) Malleability

c) Sonority

d) Conductivity

Question 20

What happens when calcium is treated with water?

i) It does not react with water

ii) It reacts violently with water

iii) It reacts less violently with water

iv) Bubbles of hydrogen gas formed stick to the surface of calcium

a) (i) and (iv)

b) (ii) and (iii)

c) (i) and (ii)

d) (iii) and (iv)


Answer:

(1) (b)

(2) (b)

(3) (d)

(4) (c)

(5) (a)

(6) (c) and (d)

(7) ©

(8) (b)

(9) (c)

(10) (b)

(11) (d)

(12) (a)

(13) (a)

(14) (a)

(15) (d)

(16) ©

17) (c)

18) (d)

(19) (a)

(20) (d)


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