Home

What is the correct answer?

4

Electrometallurgy is not involved in the extraction of __________ from its ore.

A. Aluminium

B. Tin

C. Lead

D. Both (B) & (C)

Correct Answer :

D. Both (B) & (C)


Related Questions

For grinding of softer materials, the grinding wheel should have __________… Matte smelting is used in the extraction of Silicon crystal can be converted to p-type semiconductor by doping with Difference at any instant between the value of the controlled variable… Satellites burn off during re-entry to earth's atmosphere, because of… The wet bulb temperature is lower in dry air than in wet air at the same… Fine grained steels have Material of construction of the electrode used in the electric resistance… Out of the following, the __________ pipe has the least corrosion resistance. Elimination of brittleness resulting from welding of saw blades is done… Cold cracking in the heat affected zone of a high strength steel weld… Identify the correct statement with reference to the extractive metallurgy… Steel produced from phosphatic iron is __________ in nature. The most detrimental impurity in high pressure boiler feed water is The product out from a cupola is called Which of the following is not a dielectric material? One of the methods of purification of leach liquor is ion exchange, which… __________ number determines whether the fluid flow in an open channel… Cobalt - 60 is used as a source of __________ in medical therapy & industrial… The dimensional formula of bulk modulus of elasticity is same as that… Which of the following is the most suitable material of construction for… Pick out the wrong statement. Increasing the carbon content of steel Routing in production, planning & control is concerned with the Out of the following, maximum temperature drop for a given heat flow &… Lead is poured into the joint between two- __________ pipes. __________ is a non volatile film forming constituent of a paint. Plants produce carbohydrates from the CO2 present in the atmosphere by Maximum permissible sulphur content in steel is __________ percent. Euler number is defined as the ratio of inertia force to __________ force.