Chemistry
Match the properties & uses of alloys in List 1 with the correct answer from List 2.
| List 1 | List 2 |
|---|---|
| 1. Contains Pb & Sn, has a low melting point & is used in electrical fuse | A. Duralumin |
| 2. Contains Cu, Zn, & Sn is hard, take up polish & used in statues and medals. | B. Stainless steel |
| 3. Contains Cu & Zn is hard, malleable & ductile & is used in electrical fittings. | C. Solder |
| 4. Contains Al & Cu is light & is used in aircrafts and pressure cooker. | D. Brass |
| 5. Contains Fe, Ni & Cr is corrosion resistant and is used in cutlery. | E. Bronze |
Answer
| List 1 | List 2 |
|---|---|
| 1. Contains Pb & Sn, has a low melting point & is used in electrical fuse | C. Solder |
| 2. Contains Cu, Zn, & Sn is hard, take up polish & used in statues and medals. | E. Bronze |
| 3. Contains Cu & Zn is hard, malleable & ductile & is used in electrical fittings. | D. Brass |
| 4. Contains Al & Cu is light & is used in aircrafts and pressure cooker. | A. Duralumin |
| 5. Contains Fe, Ni & Cr is corrosion resistant and is used in cutlery. | B. Stainless steel |
Related Questions
The process of dressing of the ore which involves separation of ore & gangue due to preferential wetting.
- Magnetic separation
- Hydrolytic method
- Froth flotation method
- Chemical method
The metallic oxide reduced to metal generally by thermal decomposition.
- ZnO
- MgO
- HgO
- Al2O3
Name the following :
(i) A metallic ore converted to it's oxide – iron [II] oxide on heating the concentrated ore.
(ii) A black metallic oxide reduced to metal on heating with coke.
(iii) The compound which on ignition at elevated temperatures gives pure alumina.
(iv) The non-metal which forms the anode during electrolytic reduction of fused alumina in Hall Heroult's process.
(v) A metal other than manganese, present in duralumin but not in magnalium.