CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
321098
How many of the following are oxide minerals of iron? Haematite, iron pyrites, siderite, magnetite, limonite
1 2
2 4
3 3
4 1
Explanation:
Haematite \({\mathrm{\left(\mathrm{Fe}_{2} \mathrm{O}_{3}\right)}}\), magnetite \({\mathrm{\left(\mathrm{Fe}_{3} \mathrm{O}_{4}\right)}}\) and limonite \({\mathrm{\left(2 \mathrm{Fe}_{2} \mathrm{O}_{3} .3 \mathrm{H}_{2} \mathrm{O}\right)}}\) are oxide minerals. Iron pyrites \({\mathrm{\left(\mathrm{FeS}_{2}\right)}}\) is a sulphide mineral and siderite \({\mathrm{\left(\mathrm{FeCO}_{3}\right)}}\) is carbonate mineral.
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
321098
How many of the following are oxide minerals of iron? Haematite, iron pyrites, siderite, magnetite, limonite
1 2
2 4
3 3
4 1
Explanation:
Haematite \({\mathrm{\left(\mathrm{Fe}_{2} \mathrm{O}_{3}\right)}}\), magnetite \({\mathrm{\left(\mathrm{Fe}_{3} \mathrm{O}_{4}\right)}}\) and limonite \({\mathrm{\left(2 \mathrm{Fe}_{2} \mathrm{O}_{3} .3 \mathrm{H}_{2} \mathrm{O}\right)}}\) are oxide minerals. Iron pyrites \({\mathrm{\left(\mathrm{FeS}_{2}\right)}}\) is a sulphide mineral and siderite \({\mathrm{\left(\mathrm{FeCO}_{3}\right)}}\) is carbonate mineral.
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
321098
How many of the following are oxide minerals of iron? Haematite, iron pyrites, siderite, magnetite, limonite
1 2
2 4
3 3
4 1
Explanation:
Haematite \({\mathrm{\left(\mathrm{Fe}_{2} \mathrm{O}_{3}\right)}}\), magnetite \({\mathrm{\left(\mathrm{Fe}_{3} \mathrm{O}_{4}\right)}}\) and limonite \({\mathrm{\left(2 \mathrm{Fe}_{2} \mathrm{O}_{3} .3 \mathrm{H}_{2} \mathrm{O}\right)}}\) are oxide minerals. Iron pyrites \({\mathrm{\left(\mathrm{FeS}_{2}\right)}}\) is a sulphide mineral and siderite \({\mathrm{\left(\mathrm{FeCO}_{3}\right)}}\) is carbonate mineral.
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
321098
How many of the following are oxide minerals of iron? Haematite, iron pyrites, siderite, magnetite, limonite
1 2
2 4
3 3
4 1
Explanation:
Haematite \({\mathrm{\left(\mathrm{Fe}_{2} \mathrm{O}_{3}\right)}}\), magnetite \({\mathrm{\left(\mathrm{Fe}_{3} \mathrm{O}_{4}\right)}}\) and limonite \({\mathrm{\left(2 \mathrm{Fe}_{2} \mathrm{O}_{3} .3 \mathrm{H}_{2} \mathrm{O}\right)}}\) are oxide minerals. Iron pyrites \({\mathrm{\left(\mathrm{FeS}_{2}\right)}}\) is a sulphide mineral and siderite \({\mathrm{\left(\mathrm{FeCO}_{3}\right)}}\) is carbonate mineral.