Q. No.Match the items of Column I with the items of Column II and assign the correct code :
Column I Column II
(A) Sapphire (1)
(B) Sphalerite (2) NaCN
(C) Depressant (3) Co
(D) Corundum (4) ZnS
(5)
1. A (3) B (4) C (2) D (1)
2. A (5) B (4) C (3) D (2)
3. A (2) B (3) C (4) D (5)
4. A (1) B (2) C (3) D (4)
(B) Sphalerite (2) NaCN
(C) Depressant (3) Co
(D) Corundum (4) ZnS
(5)
To unlock all the explanations of 20 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 20 chapters you need to be enrolled in MasterClass Course.
Match the items of Column I with items of Column II and assign the correct
code :
| Column I | Column II | ||
| (A) | Blistered Cu | (i) | Aluminium |
| (B) | Blast furnace | (ii) | 2Cu2O + Cu2S → 6Cu + SO2 |
| (C) | Reverberatory furnace | (iii) | Iron |
| (D) | Hall-Heroult process | (iv) | FeO + SiO2 → FeSiO3 |
| (V) | 2Cu2S + 3O2 → 2Cu2O + 2SO2 | ||
| Options: | (a) | (b) | (c) | (d) |
| 1. | ii | iii | iv | i |
| 2. | i | ii | iii | v |
| 3. | v | iv | iii | ii |
| 4. | iv | v | iii | ii |
To unlock all the explanations of 20 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 20 chapters you need to be enrolled in MasterClass Course.
Which of the following is not a mineral of aluminium?
1. Bauxite
2. Cryolite
3. Gibsite
4. Malachite
To unlock all the explanations of 20 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 20 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 20 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 20 chapters you need to be enrolled in MasterClass Course.
Galena contains ZnS with PbS. Which of the following is used as depressant to stop ZnS to come with foam?
1. NaCN
2. Aniline
3. Pine Oil
4. H2O
To unlock all the explanations of 20 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 20 chapters you need to be enrolled in MasterClass Course.
In Ellingham diagrams of oxide formation , which of the following graphs has negative slope?
1. C CO
2. Fe Fe2O3
3. Mg MgO
4. All of the above
To unlock all the explanations of 20 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 20 chapters you need to be enrolled in MasterClass Course.
Which of the following is leached with NaCN?
1. Ore of Al
2. Ore of Cu
3. Ore of Ag
4. Ore of Zn
To unlock all the explanations of 20 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 20 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 20 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 20 chapters you need to be enrolled in MasterClass Course.
In the metallurgy of copper, matte contains
1. Cu2S + Cu2O
2. Cu2S + FeS
3. FeS + FeO
4. Cu2O + FeO
To unlock all the explanations of 20 chapters you need to be enrolled in MasterClass Course.
To unlock all the explanations of 20 chapters you need to be enrolled in MasterClass Course.
© 2024 GoodEd Technologies Pvt. Ltd.