Class 12 Chemistry · General Principles and Processes of Isolation of Elements · Mix Examples of General Principles and processes of Isolation of Elements
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| List-$I$ | List-$II$ |
| $A$. બ્રોન્ઝ (Bronze) | $I$. $Cu, Ni$ |
| $B$. પિત્તળ (Brass) | $II$. $Fe, Cr, Ni, C$ |
| $C$. $UK$ સિલ્વર સિક્કો | $III$. $Cu, Zn$ |
| $D$. સ્ટેનલેસ સ્ટીલ | $IV$. $Cu, Sn$ |
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| List-$I$ | List-$II$ |
| $A$. કેલ્સિનેશન | $1$. ગેલેના |
| $B$. રોસ્ટિંગ (ભુંજવું) | $2$. મેગ્નેટાઇટ |
| $C$. ચુંબકીય અલગીકરણ | $3$. પાયરોમેટલર્જી |
| $D$. ધાતુના ઓક્સાઇડનું કાર્બન દ્વારા રિડક્શન | $4$. મેલેકાઇટ |
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| યાદી-$I$ | યાદી-$II$ |
| $A. Al_2O_3 2NaOH 3H_2O \rightarrow 2Na[Al(OH)_4]$ | $I. {\text{ભુંજન }(Roasting)}$ |
| $B. Ni(CO)_4 \xrightarrow{230^{\circ}C} Ni 4CO$ | $II. {\text{કેલ્સિનેશન }(Calcination)}$ |
| $C. Fe_2O_3 \cdot 3H_2O \xrightarrow{\Delta} Fe_2O_3 3H_2O$ | $III. {\text{બાષ્પ કલા શુદ્ધિકરણ }(Vapour phase refining)}$ |
| $D. 2PbS 3O_2 \rightarrow 2PbO 2SO_2$ | $IV. {\text{વિદ્યુત વિભાજન }(Electrolysis)}$ |
| $V. {\text{લીચિંગ }(Leaching)}$ |
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