What is the correct answer?


Fire refining process is employed in case of

A. Tin

B. Copper

C. Zinc

D. Aluminium

Correct Answer :

B. Copper

Related Questions

For preparation of porous bearings by powder metallurgy, preferred particle… In the blast furnace, incorporation of water vapour in the blast gives… Friction factor for fluid flow in pipe does not depend upon the A material in which the atoms are arranged regularly in some directions… What is the critical radius of insulation (cms) for a metallic cylinder,… When the wavelength of incident X-rays increases, the angle of diffraction Air standard Otto cycle is more efficient than the diesel cycle for the… In connection with corrosion of metals, passivation is the process that Lead is poured into the joint between two __________ pipes. Most important property of steels for use in automobile bodies is the Tempering of a material does not improve its Particle nature of cathode rays is proved due to the fact that they Though tin occurs lower than iron in the electrochemical series, yet it… Fire refining process is employed in case of Metalloids __________ is not a heat treatment process. For the Stoke's law to be valid in the case of a falling sphere in a fluid,… Maximum amount of thermal radiation is emitted at all wavelengths at any… Which of the following test is used for distinguishing among dry oils,… Wrought iron is not Angular displacement can be measured suitably by a The behaviour of a metal specimen, which when plastically strained in… Powder metallurgy technique is used in the production of __________ tools. Joining of thin foils is preferred to be done by Metal shots used in shot blasting are made of Unit of surface tension in S.I. unit is Runge-Kutta method is used to solve a/an With increase in impurities in metals, their corrosion resistances Out of the following, the best material capable of withstanding shock… Plants produce carbohydrates from the CO2 present in the atmosphere by