Home
Class 12
CHEMISTRY
Match the method of concentration of the...

Match the method of concentration of the ore in column I with the ore in column II and select the correct alternate.
`{:(" "I," "II),("(X) Magnetic separation",(A) Ag_(2)S),("(Y) Froth floatation","(B)" FeCr_(2)O_(4)),("Z Gravity separation","(C)"Al_(2)(SiO_(3))_(3)):}`

A

`{:(X,Y,Z),(A,B,C):}`

B

`{:(X,Y,Z),(B,A,C):}`

C

`{:(X,Y,Z),(C,A,B):}`

D

`{:(X,Y,Z),(B,C,A):}`

Text Solution

AI Generated Solution

The correct Answer is:
To solve the problem of matching the method of concentration of the ore in column I with the ore in column II, we will analyze each method and its corresponding ore step by step. ### Step 1: Magnetic Separation - **Definition**: Magnetic separation is a method used to separate magnetic materials from non-magnetic ones. This method is effective when one of the components has magnetic properties. - **Ore Analysis**: Among the ores listed, **FeCr₂O₄ (chromite)** contains iron, which is magnetic. Therefore, it can be separated using magnetic separation. - **Match**: X (Magnetic separation) matches with B (FeCr₂O₄). ### Step 2: Froth Flotation - **Definition**: Froth flotation is a process for selectively separating hydrophobic materials from hydrophilic ones. It is commonly used for sulfide ores. - **Ore Analysis**: The ore **Ag₂S (silver sulfide)** is a sulfide mineral. Froth flotation is suitable for this type of ore since it can separate the sulfide from the gangue. - **Match**: Y (Froth flotation) matches with A (Ag₂S). ### Step 3: Gravity Separation - **Definition**: Gravity separation is based on the differences in the specific gravity of the components. It is effective when there is a significant difference in density between the ore and the gangue. - **Ore Analysis**: The ore **Al₂(SiO₃)₃ (aluminosilicate)** has a considerable difference in density compared to many impurities, making it suitable for gravity separation. - **Match**: Z (Gravity separation) matches with C (Al₂(SiO₃)₃). ### Final Matching - X matches with B - Y matches with A - Z matches with C ### Conclusion The correct answer is: - X → B (Magnetic separation → FeCr₂O₄) - Y → A (Froth flotation → Ag₂S) - Z → C (Gravity separation → Al₂(SiO₃)₃)
Promotional Banner

Similar Questions

Explore conceptually related problems

Match the method of concentration of the ore in column I with the ore in column II and select the correct altemate. {:(,"Column "I,,"Column "II,),((a),"Leaching.",,(p)" Copper pyrite",),((b),"Calcination.",,(q)" Siderite.",),((c),"Froth floatation",,(r)" Bauxite.",),((d),"Magnetic separation.",,(s)" Chromite.",):}

Match the methods of concentration of ore given in column-I with the different ores given in column-II and select the correct option. column-I (I) magnetic separation (II) froth flotation (III) hydraulic washing column-II (a) Cu_2S (b) Fe_3O_4 (c) Al_2(SiO_3)

Match the items given in Column-I with those in Column II and select the correct option given below : {:("Column I","Column II"),((a) "Eutrophication",(i)"UV-B radiation"),((B) "Sanitary landfill",(ii)"Deforestation"),((c)"Snow blindness",(iii)"Nutrient enrichment"),((d)"Jhum cultivation",(iv) "Waste disposal"):}

Match the items given in Column-I with those in Column II and select the correct option given below : {:("Column I","Column II"),((A) "Eutrophication",(i)"UV-B radiation"),((B) "Sanitary landfill",(ii)"Deforestation"),((C)"Snow blindness",(iii)"Nutrient enrichment"),((D)"Jhum cultivation",(iv) "Waste disposal"):}

Match the items in Column - I with those in Column - II and choose the correct option from the codes given below : {:(" Column-I "," Column-II "),("(a) Catalytic converter ","(i) Hospital waste "),("(b) Muffler ","(ii) " SO_(2)""),("(c) Incinerator","(iii) Noise"),("(d) Scrubber","(iv) CO"):}

Match the items of Column I with the items of Column II and assign the correct code: {:(ColumnI,ColumnII),((A)"Sapphire",(1)Al_(2)O_(3)),((B)"Sphalerite",(2)NaCN),((C)"Depresant",(3)Co),((D)"Corundum",(4)ZnS),(,(5)Fe_(2)O_(3)):}

Match the column I with column II and mark the appropriate choice. {:("Column I","Column II"),((A) "Borax",(i) Na_(3)AIF_(6)),((B) "Inorganic benzene",(ii) Na_(2)B_(4)O_(7).10H_(2)O),((C )"Cryolite",(iii) AI_(2)O_(3).2H_(2)O),((D)"Bauxite",(iv) B_(3)N_(3)H_(6)):}

Match the Xenon compounds Column-I with its structure in Column-II and assign the correct code : {:("Column-I","Column-II"),((a)XeF_(4),(i)"pyramidal"),((b)XeF_(6),(ii)" square planar"),((c)XeOF_(4),(iii)" distored octahedral"),((d) XeO_(3),(iv)" square pyramidal"):}

Match the complexed listed column -I with type of hybridisation listed in column -II and select the correct answer using the code given below the lists : {:(,"Column"-I,,"Column"-II,),((a),[AuF_(4)]^(-),,(p)" "dsp^(2)"hybridisation",),((b),[Cu(CN)_(4)]^(3-),,(q)" "sp^(3)"hybridisation",),((c ),[Co(NH_(3))_(6)]^(3+),,(r)" "sp^(3)d^(2)"hybridisation",),((d),[Fe(H_(2)O)_(5)NO]^(2+),,(s)" "d^(2)sp^(3)"hybridisation",):}

Match the Column I with column II and mark the appropriate choice. {:("Column I","Column II"),((A) "Coal gas",(i)CO + H_(2)),((B )"Synthesis gas",(ii) CH_(4)),((C )"Producer gas",(iii) H_(2) + CH_(4) + CO),((D) "Natural gas",(iv) CO + N_(2)):}