Conversion of Ore to Metal Oxide – Calcination and Roasting
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CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

320992 Sintering is the process, in which

1 Roasting of ore takes place
2 Calcination of ore takes place
3 Reduction of ore takes place
4 Melting of ore takes place
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

320993 Choose the correct option using the code regarding roasting process.
(I) It is the process of heating the ore in air in a reverberatory furnace to obtain the oxide.
(II) It is exothermic process.
(III) It is used for the concentration of sulphide ore.
(IV)It removes easily oxidisable volatile impurities present in the concentrated ore.

1 I, II and III
2 I, II and IV
3 I, III and IV
4 I, II, III and IV
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

320994 In roasting
I.No metal impurities are removed.
II. Ore become porous.
III. Moisture is removed
Which of the above facts are true about roasting?

1 Both I and II
2 Both II and III
3 Both I and III
4 I, II and III
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

320995 The important step in the extraction of metal from carbonate ore is

1 Calcination
2 Roasting
3 Electro-reduction
4 Cupellation
NEET DIGITAL LIBRARY
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

320992 Sintering is the process, in which

1 Roasting of ore takes place
2 Calcination of ore takes place
3 Reduction of ore takes place
4 Melting of ore takes place
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

320993 Choose the correct option using the code regarding roasting process.
(I) It is the process of heating the ore in air in a reverberatory furnace to obtain the oxide.
(II) It is exothermic process.
(III) It is used for the concentration of sulphide ore.
(IV)It removes easily oxidisable volatile impurities present in the concentrated ore.

1 I, II and III
2 I, II and IV
3 I, III and IV
4 I, II, III and IV
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

320994 In roasting
I.No metal impurities are removed.
II. Ore become porous.
III. Moisture is removed
Which of the above facts are true about roasting?

1 Both I and II
2 Both II and III
3 Both I and III
4 I, II and III
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

320995 The important step in the extraction of metal from carbonate ore is

1 Calcination
2 Roasting
3 Electro-reduction
4 Cupellation
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CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

320992 Sintering is the process, in which

1 Roasting of ore takes place
2 Calcination of ore takes place
3 Reduction of ore takes place
4 Melting of ore takes place
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

320993 Choose the correct option using the code regarding roasting process.
(I) It is the process of heating the ore in air in a reverberatory furnace to obtain the oxide.
(II) It is exothermic process.
(III) It is used for the concentration of sulphide ore.
(IV)It removes easily oxidisable volatile impurities present in the concentrated ore.

1 I, II and III
2 I, II and IV
3 I, III and IV
4 I, II, III and IV
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

320994 In roasting
I.No metal impurities are removed.
II. Ore become porous.
III. Moisture is removed
Which of the above facts are true about roasting?

1 Both I and II
2 Both II and III
3 Both I and III
4 I, II and III
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

320995 The important step in the extraction of metal from carbonate ore is

1 Calcination
2 Roasting
3 Electro-reduction
4 Cupellation
For More Updates join with Us
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

320992 Sintering is the process, in which

1 Roasting of ore takes place
2 Calcination of ore takes place
3 Reduction of ore takes place
4 Melting of ore takes place
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

320993 Choose the correct option using the code regarding roasting process.
(I) It is the process of heating the ore in air in a reverberatory furnace to obtain the oxide.
(II) It is exothermic process.
(III) It is used for the concentration of sulphide ore.
(IV)It removes easily oxidisable volatile impurities present in the concentrated ore.

1 I, II and III
2 I, II and IV
3 I, III and IV
4 I, II, III and IV
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

320994 In roasting
I.No metal impurities are removed.
II. Ore become porous.
III. Moisture is removed
Which of the above facts are true about roasting?

1 Both I and II
2 Both II and III
3 Both I and III
4 I, II and III
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

320995 The important step in the extraction of metal from carbonate ore is

1 Calcination
2 Roasting
3 Electro-reduction
4 Cupellation
NEET DIGITAL LIBRARY