Home
Class 12
CHEMISTRY
Statement-1: Oxide ore of iron are conc...

Statement-1: Oxide ore of iron are concentrated through calcination/roasting in an reverberatory furncae.
Statement-1: The water of crystallisation of hydrated oxide ore get get lost as mositure, carbonate ore get decomposed to form oxide and sulphide if present is oxidised.

A

Statement-1 is True, Statement-2 is True, Statement-2 is a correct explantion for Statement-1.

B

Statement-1 is True, Statement-2 is True, Statement-2 is not a correct explantion for Statement-1.

C

Statement-1 is True, Statement-2 is False.

D

Statement-1 is True, Statement-2 is True.

Text Solution

Verified by Experts

The correct Answer is:
A
Doubtnut Promotions Banner Mobile Dark
|

Similar Questions

Explore conceptually related problems

Statement-1:Sulphide ores are concentrated by froth floatation process. Statement-2: Pine oil acts as a frothing agent in froth floatation process.

Calcination and roasting process of ores to form their oxides are beneficial:

Knowledge Check

  • The chief ores of iron are haemalite (Fe_2O_3) , magnetite (Fe_3O_4) , limonite (FeO(OH)) and siderite (FeCO_3) .In the extraction of iron , oxides ores of iron, after concentration through calcination/roasting in reverberatory furnace are mixed with lime stone and coke and fed into a blast furnace. Here, the oxide is reduced to the metal. Which of the following is obtained as a slag in the extraction of iron from haematite ore ?

    A
    `FeSiO_3`
    B
    `CaSiO_3`
    C
    `CaCO_3`
    D
    `MgSiO_3`

  • The chief ores of iron are haemalite (Fe_2O_3) , magnetite (Fe_3O_4) , limonite (FeO(OH)) and siderite (FeCO_3) .In the extraction of iron , oxides ores of iron, after concentration through calcination/roasting in reverberatory furnace are mixed with lime stone and coke and fed into a blast furnace. Here, the oxide is reduced to the metal. Reducing species in the extractive metallurgy of iron from haematite ore is :

    A
    CO
    B
    `CO_2`
    C
    `Al`
    D
    CaO

  • Statement - 1 : Sulphide ores are concentrated by froth floatation process. And Statement - 2 : Pine oil acts as a frothing agent in froth floatating process.

    A
    Statement - 1 is true, Statement - 2 is True, Statement - 2 is correct explanation for statement - 1.
    B
    Statement - 1 is true, Statement - 2 is true, Statement - 2 is not a correct explanation for statement - 1
    C
    Statement - 1 is true, Statement - 2 is false.
    D
    Statement - 1 is false, Statement - 2 is true

    • Similar Questions

    Explore conceptually related problems

    Statement-1: Auto reduction of ores is used for cinnabar, copper glance and Galena ores Statement-2:The sulphide ores of these metals react with their oxides to give metal are less reactive than copper.

    Statement-1: Auto reduction of ores is used for cinnabar, copper glance and Galena ores Statement-2:The sulphide ores of these metals react with their oxides to give metal are less reactive than copper.

    Statements : The concentration of sulphide ores by froth floation is based on emulsifcation . Expabnations : Pine oil in water forms emulsion .

    Statement -1 : Ores are generally converted into oxides , prior to reduction . Statement- 2 : Metal oxides can be easily reduced .

    Statement -1 : Ores are generally converted into oxides , prior to reduction . Statement- 2 : Metal oxides can be easily reduced .

    Home
    Profile