Question Pool Production of Metals

Production of Metals - SAMAGRA Question Pool & Answers | Class 10 English Medium

Kerala Syllabus SAMAGRA SCERT SAMAGRA Question Pool for Class 10 English Medium Chemistry Production of Metals

BrainsPrep Logo


Qn 1.

Copper is refined electrolytically.The reaction occuring at the two electrodes are given.

Electrode 1 : Cu →Cu2+ + 2e

Electrode 2 : Cu2+ + 2e →Cu

Write whether Electrode 1 is anode or cathode.

 

  • Answer)

    Anode

    Download App and View Complete Answer for FREE


Download BrainsPrep

Get Free Study Materials + 1 Week Free Trial of BrainsPrep Class 10 English Medium Tuition


BrainsPrep Logo
Qn 2.

Metals like copper and silver are refined by using electrolytic method .

(a) Which is the anode used in refining of copper ?

(b) Write the equation of reaction occuring at anode and cathode during the refining of copper.

 

  • Answer)

    (a) Impure copper is used as anode.

    (b) Anode : Cu →Cu2+ + 2e

    Cathode : Cu2+ + 2e

    Download App and View Complete Answer for FREE


Download BrainsPrep

Get Free Study Materials + 1 Week Free Trial of BrainsPrep Class 10 English Medium Tuition


BrainsPrep Logo
Qn 3.

Which is the method used to refine tin?Why?

 

  • Answer)

    Liquation, Melting point of tin is less than that of the

    Download App and View Complete Answer for FREE


Download BrainsPrep

Get Free Study Materials + 1 Week Free Trial of BrainsPrep Class 10 English Medium Tuition


BrainsPrep Logo
Qn 4.

Different methods are used to convert the ores ZnCO3,Cu2S in to oxides.Write the appropriate methods to convert these ores.

  • Answer)

    ZnCO3 - Calcination

    Cu2S -

    Download App and View Complete Answer for FREE


Download BrainsPrep

Get Free Study Materials + 1 Week Free Trial of BrainsPrep Class 10 English Medium Tuition


BrainsPrep Logo
Qn 5.

Leaching is a process in aluminium production.To which of the following

class does it belong ?

(a) Concentration of ore

(b) Extraction of metal

(c) Refining of metal

(d) Alloying

 

  • Answer)

    (a)  Concentration of

    Download App and View Complete Answer for FREE


Download BrainsPrep

Get Free Study Materials + 1 Week Free Trial of BrainsPrep Class 10 English Medium Tuition


BrainsPrep Logo
Qn 6.

(a) Which is the method used to concentrate copper pyrites?

(b) What property of the ore is utilised here ?

 

  • Answer)

    (a) Froth floataton

    (b)Density of ore is lighter than that of

    Download App and View Complete Answer for FREE


Download BrainsPrep

Get Free Study Materials + 1 Week Free Trial of BrainsPrep Class 10 English Medium Tuition


BrainsPrep Logo
Qn 7.

Which is an ore of iron ?

(Bauxite , Cryolite,Haematite ,Clay )

 

  • Answer)

    Haematite

    Download App and View Complete Answer for FREE


Download BrainsPrep

Get Free Study Materials + 1 Week Free Trial of BrainsPrep Class 10 English Medium Tuition


BrainsPrep Logo
Qn 8.

Which is not a basic metallurgical process ?

(a) Alloying

(b) Refining

(c) Concentration of ore

(d) Extraction of metal

 

  • Answer)

    (a) Alloying

    Download App and View Complete Answer for FREE


Download BrainsPrep

Get Free Study Materials + 1 Week Free Trial of BrainsPrep Class 10 English Medium Tuition


BrainsPrep Logo
Qn 9.

The method used to prepare a metal from an ore is known as ..................... .

  • Answer)

    Extraction of metal

    Download App and View Complete Answer for FREE


Download BrainsPrep

Get Free Study Materials + 1 Week Free Trial of BrainsPrep Class 10 English Medium Tuition


BrainsPrep Logo
Qn 10.

Minerals from which metals can be extracted easily are known as.................

  • Answer)

    Ore

    Download App and View Complete Answer for FREE


Download BrainsPrep

Get Free Study Materials + 1 Week Free Trial of BrainsPrep Class 10 English Medium Tuition


BrainsPrep Logo
Qn 11.

Which is not a mineral of aluminium ?

( Bauxite, Cryolite , Sand, Clay )

 

  • Answer)

    Sand

    Download App and View Complete Answer for FREE


Download BrainsPrep

Get Free Study Materials + 1 Week Free Trial of BrainsPrep Class 10 English Medium Tuition


BrainsPrep Logo
Qn 12.

Which among the following metals exists in the elemental state in nature?

(Magnesium , Sodium ,Gold ,Aluminium )

 

  • Answer)

    Gold

    Download App and View Complete Answer for FREE


Download BrainsPrep

Get Free Study Materials + 1 Week Free Trial of BrainsPrep Class 10 English Medium Tuition


BrainsPrep Logo
Qn 13.

The main gangue in iron ore is SiO2

(a) Name the important ore of iron ?

(hamatite/ Bauxite/Calamine/Tinstone)

(b) Name the substances used to remove gangue from an ore ? Which is the substance used to remove SiO2 from iron ore?

 

  • Answer)

    (a) Hamatite

    (b)Flux,

    Download App and View Complete Answer for FREE


Download BrainsPrep

Get Free Study Materials + 1 Week Free Trial of BrainsPrep Class 10 English Medium Tuition


BrainsPrep Logo
Qn 14.

The figure showing the electrolytic refining of copper is shown .

What are the anode,cathode and electrolyte of this cell ?

 

  • Answer)

    Anode - Impure copper

    Cathode - Pure copper

    Electrolyte - Copper sulphate solution with H2SO4

    Download App and View Complete Answer for FREE


Download BrainsPrep

Get Free Study Materials + 1 Week Free Trial of BrainsPrep Class 10 English Medium Tuition


BrainsPrep Logo
Qn 15.

Figure of electrolysis of alumina is shown

 

(a) What are the anode and cathode ?

(b) Write the equation of cathode reaction.

(c) The anode blocks are to be replaced occasionally; Why?

 

  • Answer)

    (a)Anode - Carbon rods

    Cathode - Carbon lining

    (b) Al 3+ + 3e → Al

    (c) The anode (carbon) is

    Download App and View Complete Answer for FREE


Download BrainsPrep

Get Free Study Materials + 1 Week Free Trial of BrainsPrep Class 10 English Medium Tuition


BrainsPrep Logo
Qn 16.

The figure of electrolytic production of aluminium is given

(a)Name the process of production of aluminium ?

(b) What are the anode and cathode of the cell ?

(c) What is the role of cryolite in the electrolysis?

 

  • Answer)

    (a) Hall-Heroult process

    (b) Anode - Carbon rods

    Cathode - Carbon lining

    (c) To dissolve alumina /to reduce melting point of

    Download App and View Complete Answer for FREE


Download BrainsPrep

Get Free Study Materials + 1 Week Free Trial of BrainsPrep Class 10 English Medium Tuition


BrainsPrep Logo
Qn 17.

(a) Name the ore of aluminium ?

(b) Which is the method used to concentrate the ore of aluminium?

(c) Name the process used to produce aluminium ?

 

  • Answer)

    (a) Bauxite

    (b) Leaching

    (c)

    Download App and View Complete Answer for FREE


Download BrainsPrep

Get Free Study Materials + 1 Week Free Trial of BrainsPrep Class 10 English Medium Tuition


BrainsPrep Logo
Qn 18.

Names of some alloy steels are given in the box .

Alnico

Stainless steel

Nichrome

 

(a) What is the common component in all these steels ?

(b) Which steel is used to make heating coils?

(c) Which is the steel is used to make permanent magnets ?

(d) What is the similarity between stainless steel and nichrome ?

 

  • Answer)

    (a) Iron

    (b) Nichrome

    (c) Alnico

    (d) Both of them contain same

    Download App and View Complete Answer for FREE


Download BrainsPrep

Get Free Study Materials + 1 Week Free Trial of BrainsPrep Class 10 English Medium Tuition


BrainsPrep Logo
Qn 19.

Equation of reaction occuring in blast furnace during the production of iron are given.

CaCO3 → CaO + CO2

Fe2O3 + 3 CO → 2 Fe + 3 CO2

CaO +SiO2 → CaSiO3

(a) Which of these represent slag formation reaction ?

(b) Which is the substance acting as reducing agent in blast furnace?

 

  • Answer)

    (a) CaO +SiO2 →CaSiO3

    (b)

    Download App and View Complete Answer for FREE


Download BrainsPrep

Get Free Study Materials + 1 Week Free Trial of BrainsPrep Class 10 English Medium Tuition


BrainsPrep Logo
Qn 20.

Iron produced in blast furnace

(a) Name the ore used here ?

(b) Why coke is added along with the ore to the blast furnace ?

(c) What is the role of limestone in blast furnace?

 

  • Answer)

    (a)Haematite .

    (b)For the reduction of ore/For the formation of CO.

    (c)To remove the

    Download App and View Complete Answer for FREE


Download BrainsPrep

Get Free Study Materials + 1 Week Free Trial of BrainsPrep Class 10 English Medium Tuition


BrainsPrep Logo
Qn 21.

Ag , Fe, Sn, Na, Au

 

(a) Arrange the above metals in the decreasing order of their reactivity?

(b) Which metal is produced by reduction using electricity ?

(c) Which of the above occur free in nature ?

(d) Name the metal for which the compounds are highly stable ?

 

  • Answer)

    (a) Na > Fe>Sn>Ag>Au

    (b) Na

    (c) Au

    (d)

    Download App and View Complete Answer for FREE


Download BrainsPrep

Get Free Study Materials + 1 Week Free Trial of BrainsPrep Class 10 English Medium Tuition


BrainsPrep Logo
Qn 22.

a)Complete the table.

Metal

Method of refining

Tin

(x)

Zinc

(y)

(a) identify x and y

(b) Which property of metals is made use of in the above process ?

 

  • Answer)

    (a) x - Liquation

         y - distillation

     

    (b) Melting point of tin is lower than impurities.

    Boiling point of

    Download App and View Complete Answer for FREE


Download BrainsPrep

Get Free Study Materials + 1 Week Free Trial of BrainsPrep Class 10 English Medium Tuition


BrainsPrep Logo
Qn 23.

Equation related with the concentration of two ores of Zn are given.

 

i. ZnCO3 + Heat ? ZnO + CO2

ii. ZnS +O2 + Heat ? ZnO + SO2

 

a .Which of these equation represent roasting?

b . How does roasting differ from calcination ?

 

  • Answer)

    (a)second (ii)

    (b)Calcination is carried out in the absence /limited supply of air .Where as roasting is carried out with the presence of excess

    Download App and View Complete Answer for FREE


Download BrainsPrep

Get Free Study Materials + 1 Week Free Trial of BrainsPrep Class 10 English Medium Tuition


BrainsPrep Logo
Qn 24.

Match suitably

Ore

Nature of the ore

The method of concentration

Copper pyrites

Density of the ore is heavier than gangue

Leaching

Magnetite

Ore and gangue do not dissolve in same solvent

Hydraulic washing

Ore of gold

Density of the ore is lighter than gangue

Magnetic separation

Bauxite

Magnetic natured ore

Froth floatation

 

  • Answer)


    Download BrainsPrep

    Get Free Study Materials + 1 Week Free Trial of BrainsPrep Class 10 English Medium Tuition


    BrainsPrep Logo
    Qn 25.

    Match the following

    Metal

    Ore

    Copper

    Bauxite

    Zinc

    Haematite

    Iron

    Calamine

    Aluminium

    Cuprite

     

    • Answer)
      Download App and View Complete Answer for FREE


    Download BrainsPrep

    Get Free Study Materials + 1 Week Free Trial of BrainsPrep Class 10 English Medium Tuition


    BrainsPrep Logo
    Qn 26.

    Clay,bauxite and precious stone are some minerals of aluminium.

    a . Which among these is the ore of aluminium.

    b . Write any two charecteristics of an ore

     

    • Answer)

      (a) Bauxite

      (b) Abundance / Easily separable / High metal content

      Download App and View Complete Answer for FREE


    Download BrainsPrep

    Get Free Study Materials + 1 Week Free Trial of BrainsPrep Class 10 English Medium Tuition


    BrainsPrep Logo
    Qn 27.

    Which is the reducing agent used in the extraction of reactive metals like sodium and potassium

    • Answer)

      Electricity

      Download App and View Complete Answer for FREE


    Download BrainsPrep

    Get Free Study Materials + 1 Week Free Trial of BrainsPrep Class 10 English Medium Tuition


    BrainsPrep Logo
    Qn 28.

    Name the method used to concentrate bauxite.

    (Leaching , Hydraulic washing , Magnetic separation )

     

    • Answer)

      Leaching

      Download App and View Complete Answer for FREE


    Download BrainsPrep

    Get Free Study Materials + 1 Week Free Trial of BrainsPrep Class 10 English Medium Tuition


    BrainsPrep Logo
    Qn 29.

    Which method is used to remove tin stone from iron tungstate?

    (Froth floatation ,Magnetic separation , Levigation, Leaching )

     

    • Answer)

      Magnetic separation

      Download App and View Complete Answer for FREE


    Download BrainsPrep

    Get Free Study Materials + 1 Week Free Trial of BrainsPrep Class 10 English Medium Tuition


    BrainsPrep Logo
    Qn 30.

    Name the process used to concentrate the ore,Copper Pyrites

    (CuFeS2) ?

     

    • Answer)

      Froth floatation

      Download App and View Complete Answer for FREE


    Download BrainsPrep

    Get Free Study Materials + 1 Week Free Trial of BrainsPrep Class 10 English Medium Tuition


    BrainsPrep Logo
    Qn 31.

     

     

     

    • Answer)

      (a) Hot NaOH solution

      (b) Al(OH)3 precipitate

      (c) Precipitate is seperated and heated

      Download App and View Complete Answer for FREE


    Download BrainsPrep

    Get Free Study Materials + 1 Week Free Trial of BrainsPrep Class 10 English Medium Tuition


    BrainsPrep Logo
    Qn 32.

         a)  Which is the reducing agent used to extract aluminium

               b) complete the equation of the ionisation of alumina during electrolysis.

                   Al2     O3 ? ----- + -----

     

    • Answer)

      a) electricity

      b) Al2O3 ? 2Al 3+ +

      Download App and View Complete Answer for FREE


    Download BrainsPrep

    Get Free Study Materials + 1 Week Free Trial of BrainsPrep Class 10 English Medium Tuition


    BrainsPrep Logo
    Qn 33.

    a)Which of those given below is an alloy steel

    (Bronze ,aluminium Bronze ,Nichrome ,Brass )

    b) Write any one characteristic of the above alloy.

     

    • Answer)

      a) Nichrome

      b) High resistance (electrical / corrosion

      Download App and View Complete Answer for FREE


    Download BrainsPrep

    Get Free Study Materials + 1 Week Free Trial of BrainsPrep Class 10 English Medium Tuition


    BrainsPrep Logo
    Qn 34.

    What are the methods used to refine the following metals?Why those methods are employed?

    a) Tin   b)Cadmium

     

    • Answer)

      Tin - Liquation - Low melting point

      Cadmium---Distillation- Low boiling

      Download App and View Complete Answer for FREE


    Download BrainsPrep

    Get Free Study Materials + 1 Week Free Trial of BrainsPrep Class 10 English Medium Tuition


    BrainsPrep Logo
    Qn 35.

    The production of Aluminium is different from that of Iron.

    a)Which is the method of concentration of the ore of aluminium

    b)Which is the reducing agent used in the production of Aluminium?

    c)Name the furnace used in the production of iron.

    d) pig iron directly got from the furnace is not used as such.What may be the reason?

     

    • Answer)

      a)Leaching.

      b)Electricity

      c)Blast furnace.

      d)Presence of high amount of impurities such as carbon,sulphur,and phosphorus make it

      Download App and View Complete Answer for FREE


    Download BrainsPrep

    Get Free Study Materials + 1 Week Free Trial of BrainsPrep Class 10 English Medium Tuition


    BrainsPrep Logo
    Qn 36.

    Answer the questions related to concentrations of bauxite given below.

    a) Which method is used to concentrate bauxite?

    b) Name the product obtained on heating aluminium hydroxide

     

    • Answer)

      a) Leaching.

      b) Alumina/Aluminium

      Download App and View Complete Answer for FREE


    Download BrainsPrep

    Get Free Study Materials + 1 Week Free Trial of BrainsPrep Class 10 English Medium Tuition


    BrainsPrep Logo
    Qn 37.

    The components of stainless steel and nichrome are Fe, Ni,Cr,C.

    a) Write any one characteristic of each of these.

    b)Why these two are showing different characteristic?

     

    • Answer)

      a) Stainless steel: Very hard/Corrosion resistant etc

      Nichrome: High resistance/High melting poin/corrosion resistant etc

      b)Though the constituent

      Download App and View Complete Answer for FREE


    Download BrainsPrep

    Get Free Study Materials + 1 Week Free Trial of BrainsPrep Class 10 English Medium Tuition


    BrainsPrep Logo
    Qn 38.

    Flux is used to remove impurities which is is not removed during the concentration of ore

    a) How does flux remove gangue?

    b) The gangue present in an ore is FeO.Select a flux that can be used to remove tis gangue.

    (CaO,MgO,SiO2)

    (Hint: Metallic oxides are basic and non metallic oxides are acidic)

     

    • Answer)

      a) Flux reacts with gangue to form low melting slag.

      b) SiO2 /

      Download App and View Complete Answer for FREE


    Download BrainsPrep

    Get Free Study Materials + 1 Week Free Trial of BrainsPrep Class 10 English Medium Tuition


    BrainsPrep Logo
    Qn 39.

    a)What are minerals?

    b)All minerals are not ores.Why?(give two reasons)

     

    • Answer)

      a)Naturally compounds of metals.

      b) 

      • Ores are to be abundant,
      • should have high metal content.
      • Metals can be easily and
        Download App and View Complete Answer for FREE


    Download BrainsPrep

    Get Free Study Materials + 1 Week Free Trial of BrainsPrep Class 10 English Medium Tuition


    BrainsPrep Logo
    Qn 40.

    A is a carbonate ore of a metal and B is a sulphide ore of a metal.

    a) Which method is used to  concentrate the  ore B

    b)Which method is used to convert  the concentrated ore A into the oxide

    b)Select from those in the bracket the process in which the ore is converted to metal and write it.

    ( Oxidation, Electro plating, Reduction)

     

    • Answer)

      a) Froath floation

      b) Calcination

      c)

      Download App and View Complete Answer for FREE


    Download BrainsPrep

    Get Free Study Materials + 1 Week Free Trial of BrainsPrep Class 10 English Medium Tuition


    BrainsPrep Logo
    Qn 41.

    Some ores are given.

    a) Bauxite Al2O3.2H2O

    b) Zinc Blende ZnS

    c) Tin Stone SnO2

    d)Haematite Fe2O3

    Which of the above ore is roasted?

    Which is the method used to concentrate tinstone?

     

    • Answer)

      Zinc Blende

      Magnetic

      Download App and View Complete Answer for FREE


    Download BrainsPrep

    Get Free Study Materials + 1 Week Free Trial of BrainsPrep Class 10 English Medium Tuition


    BrainsPrep Logo
    Qn 42.

    a) Which  one of these  is an alloyf steel.?

    (Bronze, Aluminium Bronze, Nichrome, Brass)

    b)Write any one characteristic of the above alloy.

     

    • Answer)

      a)Nichrome

      b)High resistance(Electrical/corrosion

      Download App and View Complete Answer for FREE


    Download BrainsPrep

    Get Free Study Materials + 1 Week Free Trial of BrainsPrep Class 10 English Medium Tuition


    BrainsPrep Logo
    Qn 43.

    a) Which is the reducing agent used to extract aluminium from alumina?

    b)Complete the equation of ionisation of alumina during electrolysis

    Al2O3→........ +.........

     

    • Answer)

      a)Electricity

      b)Al2O3→2Al3+

      Download App and View Complete Answer for FREE


    Download BrainsPrep

    Get Free Study Materials + 1 Week Free Trial of BrainsPrep Class 10 English Medium Tuition


    BrainsPrep Logo
    Class 10 English Medium SAMAGRA Question Pool Click here
    Class 10 - Malayalam Medium SAMAGRA Question Pool Click here
    Class 9 English Medium SAMAGRA Question Pool Click here
    Class 11 SAMAGRA Question Pool Click here
    Class 12 SAMAGRA Question Pool Click here


    Download BrainsPrep

    Get Free Study Materials + 1 Week Free Trial of BrainsPrep Tuition


    Responsive image Google Play   Responsive image Facebook

    Ore

    Download App and View Complete Answer for FREE