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Consider the following statements : Ro...

Consider the following statements :
Roasting is carried out to :
1. Convert sulphide into oxide
2. Melt the ore
3. Remove moisture, water of hydration and expel organic matter
4. Remove sulphur and arsenic in the form of volatile oxides
Out of these statements :

A

1, 3 and 4 are correct

B

1, 2 and 3 are correct

C

2, 3 and 4 are correct

D

1, 2 and 4 are correct

Text Solution

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The correct Answer is:
A
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When roasting is carried out: (P) sulphde ore sare converted into oxide and suphate (Q) Remove water of hydration (R ) Melt the ore (S) Remove arsenic and sulphur impurities

Consider the following statements . Roasting is carried out to : (i) convert sulphide to oxide and sulphate. (ii) to remove impurities of CuS and FeS present in the ore of tin stone (SnO_(2)) as CuSO_(4) and FeSO_(4) . (iii) melt the ore. (iv) remove arsenic and sulphur impurities. of these statements.

Knowledge Check

  • Consider the following statements : Roasting is carried out to 1. convert sulphide to oxide and sulphate 2. remove water of hydration 3. melt the ore 4. remove arsenic and sulphur impurities Of these statements

    A
    1, 2, and 3 are correct
    B
    1 and 4 are correct
    C
    1, 2 and 4 are correct
    D
    2, 3 and 4 are correct

  • Consider the following statements: Roasting is carried out to: (i) convery sulphide to oxide and sulphate (ii) remove water of hydration (iii) melt the ore (iv) remove arsenic and sulphur impurities of these statements:

    A
    (i),(ii) and (iii) are correct
    B
    (i) and (iv) are correct
    C
    (i),(ii) and (iv) are correct
    D
    (ii),(iii) and (iv) are correct

  • Roasting is carried out to : I. Sulphide is converted to oxide. II. Remove water of hydration. III. Melt the ore. IV. Remove arsenic and Sulphur impurities. of these statements

    A
    I, II & III are correct
    B
    I, III & IV are correct
    C
    I, II & IV are correct
    D
    II, III & IV are correct

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