GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS
25794
Ore pitch blende is main source of
1 \(Ra\)
2 \(Ce\)
3 \(Th\)
4 \((a)\) and \((c)\) both
Explanation:
It’s obvious.
GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS
25795
Which of ore is metalloid
1 \(As\)
2 \(Na\)
3 \(Au\)
4 \(Fe\)
Explanation:
\(As \to \) metalloid \(Na,\,Au,\,Fe \to \) metal
GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS
25796
A mineral is called an ore if
1 Metal present in mineral is precious
2 Metal can be extracted from it
3 Metal can be extracted profitably from it
4 Metal cannot be extracted from it
Explanation:
An ore is a type of rock that contains sufficient minerals with important elements including metals that can be economically extracted from the rock. A mineral is called ore when a metal can be profitably extracted from it.
GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS
25797
The highest quantity present in the atmosphere is of
GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS
25794
Ore pitch blende is main source of
1 \(Ra\)
2 \(Ce\)
3 \(Th\)
4 \((a)\) and \((c)\) both
Explanation:
It’s obvious.
GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS
25795
Which of ore is metalloid
1 \(As\)
2 \(Na\)
3 \(Au\)
4 \(Fe\)
Explanation:
\(As \to \) metalloid \(Na,\,Au,\,Fe \to \) metal
GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS
25796
A mineral is called an ore if
1 Metal present in mineral is precious
2 Metal can be extracted from it
3 Metal can be extracted profitably from it
4 Metal cannot be extracted from it
Explanation:
An ore is a type of rock that contains sufficient minerals with important elements including metals that can be economically extracted from the rock. A mineral is called ore when a metal can be profitably extracted from it.
GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS
25797
The highest quantity present in the atmosphere is of
GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS
25794
Ore pitch blende is main source of
1 \(Ra\)
2 \(Ce\)
3 \(Th\)
4 \((a)\) and \((c)\) both
Explanation:
It’s obvious.
GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS
25795
Which of ore is metalloid
1 \(As\)
2 \(Na\)
3 \(Au\)
4 \(Fe\)
Explanation:
\(As \to \) metalloid \(Na,\,Au,\,Fe \to \) metal
GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS
25796
A mineral is called an ore if
1 Metal present in mineral is precious
2 Metal can be extracted from it
3 Metal can be extracted profitably from it
4 Metal cannot be extracted from it
Explanation:
An ore is a type of rock that contains sufficient minerals with important elements including metals that can be economically extracted from the rock. A mineral is called ore when a metal can be profitably extracted from it.
GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS
25797
The highest quantity present in the atmosphere is of
GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS
25794
Ore pitch blende is main source of
1 \(Ra\)
2 \(Ce\)
3 \(Th\)
4 \((a)\) and \((c)\) both
Explanation:
It’s obvious.
GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS
25795
Which of ore is metalloid
1 \(As\)
2 \(Na\)
3 \(Au\)
4 \(Fe\)
Explanation:
\(As \to \) metalloid \(Na,\,Au,\,Fe \to \) metal
GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS
25796
A mineral is called an ore if
1 Metal present in mineral is precious
2 Metal can be extracted from it
3 Metal can be extracted profitably from it
4 Metal cannot be extracted from it
Explanation:
An ore is a type of rock that contains sufficient minerals with important elements including metals that can be economically extracted from the rock. A mineral is called ore when a metal can be profitably extracted from it.
GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS
25797
The highest quantity present in the atmosphere is of
