Advertisements
Advertisements
Question
Name one metal occurring as a : Sulphide ore
One Word/Term Answer
Solution
Mercury
shaalaa.com
Is there an error in this question or solution?
APPEARS IN
RELATED QUESTIONS
State the main components of the following alloys:
Duralumin
Which impurities are present in bauxite?
State a reason why zinc is used in:
cosmetics?
Complete the statement using every given option.
During the extraction of aluminium..............
Ingredients and gangue in bauxite.
Give composition and uses of the following alloys. Mention the reason for its use.
Stainless steel
Name the alloy of zinc used in simple voltaic cells.
Give the name and formula of an ore of zinc.:
Roasting of the ore
| X | Y | |
| Normal Electronic Configuration | 2, 8, 7 | 2, 8, 2 |
| Nature of Oxide | Dissolves in water and truns blue litmus red. | Very low solubility in water. Dissolves in hydrochloric acid. |
| Tendency for Oxidising and reducing reactions | Tends to oxidise elements and compound. | Tends to act as a reducing agent. |
| Electrical and Thermal Conductivity | Very poor electrical conductor. Poor thermal conductivity. |
Good electrical conductor. Good thermal conductor. |
| Tendency to form Alloys and Amalgams | No tendency to form alloys. | Forms alloys. |
Using the information above, complete the following:
- _________ is the metallic element.
- Metal atoms tend to have a maximum of ________ electrons in the outermost energy level.
- Non-metallic elements tend to form _________ oxides while metals tend to form _______ oxides.
- Non-metallic elements tend to be ______ conductors of heat and electricity.
- Metals tend to _______ electrons and act as ________ agents in their reactions with elements and compounds.
State the main components of the following alloy:
Duralumin
Nickel is purified by thermal decomposition of its:-
