Match the following items in column I with the corresponding items in column II 

             Column I                                Column II

    (i) Na_{2}CO_{3}\! \cdot \! 10 H_{2}O             (A) Portland Cement ingredient

    (ii)Mg (HCO_{3})_{2}                  (B) Castner -Kellner Process

   (iii) NaOH                              (C) Solvay process

     (iv)Ca_{3}Al_{2}O_{6}                       (D) Temporary hardness

 

 

    

  • Option 1)

    (i) \rightarrow (D); (ii) \rightarrow(A); (iii)\rightarrow(B); (iv)\rightarrow(C)

  • Option 2)

    (i) \rightarrow (C); (ii) \rightarrow(B); (iii)\rightarrow(D); (iv)\rightarrow(A)

  • Option 3)

    (i) \rightarrow (C); (ii) \rightarrow(D); (iii)\rightarrow(B); (iv)\rightarrow(A)

  • Option 4)

    (i) \rightarrow (B); (ii) \rightarrow(C); (iii)\rightarrow(A); (iv)\rightarrow(D)

Answers (1)
A admin

 

Minerals -

The various compounds of metals which occur in the earth's crust and are obtained by mining are called minerals

- wherein

In the earth crust order of abundance of elements is O>Si>Al>Fe

 

 

Liquation Process -

This process is based on the difference in fusibility of the metal and impurities.

- wherein

This method is used to purify the metals like Bi,Sn,Pb,Hg etc.

 

 

Froth floatation process -

This method is mainly for the concentration of sulphide ores.The method is based on the different wetting characteristics of the gangue and the sulphide ore with water and oil  

- wherein

The gangue preferentially wetted by water and the ore by oil.

Na_{2}CO_{3}10H_{2}O\rightarrow Solxay\: Process

Mg(HCO_{3})_{2}\rightarrow Temporary\: Hardness

NaOH\rightarrow Castner- Kellner Cell

La_{3}Al_{2}O_{6}\rightarrow Portland \: Cement

 


Option 1)

(i) \rightarrow (D); (ii) \rightarrow(A); (iii)\rightarrow(B); (iv)\rightarrow(C)

Option 2)

(i) \rightarrow (C); (ii) \rightarrow(B); (iii)\rightarrow(D); (iv)\rightarrow(A)

Option 3)

(i) \rightarrow (C); (ii) \rightarrow(D); (iii)\rightarrow(B); (iv)\rightarrow(A)

Option 4)

(i) \rightarrow (B); (ii) \rightarrow(C); (iii)\rightarrow(A); (iv)\rightarrow(D)

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