Home
Class 12
CHEMISTRY
The common impurities in bauxite are (...

The common impurities in bauxite are
(i) `Fe_(2)O_(3)`
(ii) `SiO_(2)`
(iii) `CuO`
(iv) `ZnO`

A

`1, 3`

B

`2 ,3`

C

`1 ,2`

D

`2 ,4`

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question regarding the common impurities in bauxite, we need to identify which of the given compounds are typically found as impurities in bauxite. ### Step-by-Step Solution: 1. **Understanding Bauxite Composition**: Bauxite is primarily an ore of aluminum and contains various impurities. The common impurities found in bauxite include oxides of metals and silicates. 2. **Identifying the Given Compounds**: We have the following compounds listed as options: - (i) `Fe_(2)O_(3)` (Iron(III) oxide) - (ii) `SiO_(2)` (Silicon dioxide) - (iii) `CuO` (Copper(II) oxide) - (iv) `ZnO` (Zinc oxide) 3. **Analyzing Each Compound**: - **`Fe_(2)O_(3)`**: This is a common impurity in bauxite, often found as hematite or geothite. - **`SiO_(2)`**: This is also a common impurity in bauxite, often present as silica. - **`CuO`**: Copper(II) oxide is not typically found in bauxite. - **`ZnO`**: Zinc oxide is also not a common impurity in bauxite. 4. **Conclusion**: The common impurities in bauxite are `Fe_(2)O_(3)` and `SiO_(2)`. Therefore, the correct answer includes options (i) and (ii). 5. **Final Answer**: The answer is option number 3, which includes (i) and (ii).
Promotional Banner

Similar Questions

Explore conceptually related problems

Which of the following molecules are homoatomic ? (i) H_(2)O , (ii) O_(3) , (iii) NH_(3) , (iv) Cl_(2)

Among the following oxides, how many of them are amphoteric oxides ? (a) B_(2)O_(3) , (b) Al_(2)O_(3) , (c ) CaO , (d) ZnO (e) Ga_(2)O_(3) , (f) SnO_(2) , (g) PbO_(2) , (h) BeO (i) CuO , (j) Fe_(2)O_(3)

Give the conjugate bases of (i) H_(2)O (ii) HNO_(3) (iii) NH_(4)^(+) (Iv) HCO_(3)^(-).

Among the following which are ambidentate ligands? (i) NO_2^(-) (ii) NO_3^(-) (iii) C_2O_4^(2-) (iv) SCN^(-)

Name the following compounds : Oxides of sulphur : (i) S_2 O (ii) S_2 O_3 (iii) SO_4 (iv) S_2 O_7 . (b) Oxyacids of sulphur : (i) H_2 SO_2 (ii) H_2 SO_3 (iii) H_2 S_2 O_4 (iv) H_2 S_2 O_2 (v) H_2 S_2 O_5 . (c) Sulphuric acid : (i) H_2 S_2 O_3 (ii) H_2 S_2 O_7 (d) Thionic acids : (i) H_2 S_2 O_6 (ii) H_2 (S)_n O_6 ( e) Peroxo acids : (i) H_2 SO_5 (ii) H_2 S_2 O_8 .

Upon hetaing with Cu_(2)S the regants that give copper metel are (i) CuFeS_(2) (ii) CuO (iii) Cu_(2)O (iv) CuSO_(4)

Arrange the following in the increasing order of acidic strength (i) FSO_(3)H (ii) HCO_(3)^(-) (iii) H_(2)O (iv) HSO_(4)^(-)

Give the conjugate bases of (i) H2_O (ii) HNO_3 (iii) NH_4^+ (iv) HCO_3^(-1)

Out of the following reduction processes : (i) Fe_(2)O_(3) + 3C rarr 2Fe + 3CO (ii) Cu_(2)O +C rarr 2Cu + CO (iii) PbO + C rarr Pb + CO (iv) ZnO + C rarr Zn + CO Correct process is//are :

Among the following which species is/are paramagnetic (i) Sr^(2+) (ii) Fe^(3+) (iii) Co^(2+) (iv) S^(2-) (v) Pb^(2+)