Advertisements
Advertisements
प्रश्न
Calcium, copper, lead, aluminium, zinc, chromium, magnesium, iron.
Choose the major metals from the list given above to make the following alloys:
(a) Stainless steel
(b) brass
उत्तर
(a) For stainless steel: iron, chromium
(b) For brass: Copper and zinc.
APPEARS IN
संबंधित प्रश्न
In the extraction of aluminium: Write the function and formula of cryolite in the extraction of aluminium.
Silver metal does not combine easily with oxygen but silver jewellery tarnishes after some time. How?
Name one metal which is extracted by reduction with carbon.
Name the method by which aluminium metal is extracted.
Name the gas produced when calamine ore is calcined.
How is aluminium metal extracted? Explain with the help of an equation.
Name one ore of mercury. Which mercury compound is present in this ore? Write its chemical formula.
The major ore of aluminium is known as:
(a) cinnabar
(b) calamine
(c) bauxite
(d) pyrolusite
Aluminum is used in thermite welding:
what is ignition mixture?
During extraction of metals, electolytic refining is used to obtain pure metals.
(a) Which material will be used as anode and cathode for refining of silver metal by this process?
(b) Suggest a suitable electrolyte also.
(c) In this electrolytic cell, where do we get pure silver after passing electric current?
