What is the correct answer?


The product (s) of roasting of a sulphide ore is (are)

A. Oxide only

B. Sulphate only

C. Oxide and sulphate

D. Dependent on temperature and partial pressure of oxygen & sulphur dioxide

Correct Answer :

A. Oxide only

Related Questions

A solid aluminium ball, when quenched in a water bath maintained at 40°C,… Wrought iron is not With increase in temperature, the electrical conductivity of a __________… If the head is doubled in & centrifugal pump, the power required will… L.D. (Linz-Donawitz) converter is used in the production of Stresses encountered in the metal forming processes are less than the… The kinematic viscosity (in stoke) and the absolute/dynamic viscosity… Which of the following are considered applications of ultrasonic testing? Thermistors are used in __________ devices. A fluid is termed as the Newtonian fluid, when the shear stress is __________… The wet bulb temperature is lower in dry air than in wet air at the same… __________ is the process used for setting up compressive stresses in… In __________ process, there is an increase in entropy with no degradation… A fire tube boiler is limited to a maximum steam pressure of about __________… Vernier calipers cannot be used to measure the __________ of air does not increase with increase in temperature. Suitability of steel for its use in cable is judged by its strength in Matte smelting is used in the extraction of The pressure outside a bubble/droplet of liquid is __________ the internal… Hot dipping process is used for coating a low melting point metal (e.g.… Identify the false statement Maximum permissible sulphur content in steel is __________ percent. In extrusion of metals, which of the following statement is true? Dry saturated steam can be converted into superheated steam by Identify the correct statement with reference to the extractive metallurgy… When an isolated thermodynamic system executes a process, Maximum hardenability of steel depends upon its Damage to metal surface by mechanical action is called At the point of boundary layer separation in fluid flow, the Which of the following is not an ore of copper?