NEET Test Series from KOTA - 10 Papers In MS WORD
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GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS
25855
Which of the following metal is sometimes found native in nature
1 \(Al\)
2 \(Cu\)
3 \(Fe\)
4 \(Mg\)
Explanation:
Copper is an unreactive metal and it reacts slowly with the atmosphere. The huge lumps of copper metal are found buried in the ground as nuggets. This is called native copper.
GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS
25856
The most abundant metal in the earth crust is
1 \(Na\)
2 \(Mg\)
3 \(Al\)
4 \(Fe\)
Explanation:
(c)\(Al\) is most abundant metal in the earth crust
GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS
25857
Indicate the mineral from which copper is manufactured
1 Galena
2 Cuprite
3 Sphalerite
4 Chalcopyrite
Explanation:
(d)Chalcopyrite\((CuFe{S_2})\)
GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS
25858
The principal ores of silver are argentite, horn silver and pyrargyrite. Their formula respectively are
1 \(A{g_2}S,\,AgCl\) and \(AgSb{S_2}\)
2 \(AgCl,\,AgSb{S_2}\) and \(A{g_2}S\)
3 \(AgSb{S_2},\,A{g_2}S\) and \(AgCl\)
4 \(AgCl,\,A{g_2}S\) and \(AgSb{S_2}\)
Explanation:
Argentite is \(Ag _2 S\), Horn Silver is \(AgCl\) and Pyrargyrite is \(AbSbS _2\).
GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS
25855
Which of the following metal is sometimes found native in nature
1 \(Al\)
2 \(Cu\)
3 \(Fe\)
4 \(Mg\)
Explanation:
Copper is an unreactive metal and it reacts slowly with the atmosphere. The huge lumps of copper metal are found buried in the ground as nuggets. This is called native copper.
GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS
25856
The most abundant metal in the earth crust is
1 \(Na\)
2 \(Mg\)
3 \(Al\)
4 \(Fe\)
Explanation:
(c)\(Al\) is most abundant metal in the earth crust
GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS
25857
Indicate the mineral from which copper is manufactured
1 Galena
2 Cuprite
3 Sphalerite
4 Chalcopyrite
Explanation:
(d)Chalcopyrite\((CuFe{S_2})\)
GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS
25858
The principal ores of silver are argentite, horn silver and pyrargyrite. Their formula respectively are
1 \(A{g_2}S,\,AgCl\) and \(AgSb{S_2}\)
2 \(AgCl,\,AgSb{S_2}\) and \(A{g_2}S\)
3 \(AgSb{S_2},\,A{g_2}S\) and \(AgCl\)
4 \(AgCl,\,A{g_2}S\) and \(AgSb{S_2}\)
Explanation:
Argentite is \(Ag _2 S\), Horn Silver is \(AgCl\) and Pyrargyrite is \(AbSbS _2\).
GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS
25855
Which of the following metal is sometimes found native in nature
1 \(Al\)
2 \(Cu\)
3 \(Fe\)
4 \(Mg\)
Explanation:
Copper is an unreactive metal and it reacts slowly with the atmosphere. The huge lumps of copper metal are found buried in the ground as nuggets. This is called native copper.
GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS
25856
The most abundant metal in the earth crust is
1 \(Na\)
2 \(Mg\)
3 \(Al\)
4 \(Fe\)
Explanation:
(c)\(Al\) is most abundant metal in the earth crust
GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS
25857
Indicate the mineral from which copper is manufactured
1 Galena
2 Cuprite
3 Sphalerite
4 Chalcopyrite
Explanation:
(d)Chalcopyrite\((CuFe{S_2})\)
GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS
25858
The principal ores of silver are argentite, horn silver and pyrargyrite. Their formula respectively are
1 \(A{g_2}S,\,AgCl\) and \(AgSb{S_2}\)
2 \(AgCl,\,AgSb{S_2}\) and \(A{g_2}S\)
3 \(AgSb{S_2},\,A{g_2}S\) and \(AgCl\)
4 \(AgCl,\,A{g_2}S\) and \(AgSb{S_2}\)
Explanation:
Argentite is \(Ag _2 S\), Horn Silver is \(AgCl\) and Pyrargyrite is \(AbSbS _2\).
NEET Test Series from KOTA - 10 Papers In MS WORD
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GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS
25855
Which of the following metal is sometimes found native in nature
1 \(Al\)
2 \(Cu\)
3 \(Fe\)
4 \(Mg\)
Explanation:
Copper is an unreactive metal and it reacts slowly with the atmosphere. The huge lumps of copper metal are found buried in the ground as nuggets. This is called native copper.
GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS
25856
The most abundant metal in the earth crust is
1 \(Na\)
2 \(Mg\)
3 \(Al\)
4 \(Fe\)
Explanation:
(c)\(Al\) is most abundant metal in the earth crust
GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS
25857
Indicate the mineral from which copper is manufactured
1 Galena
2 Cuprite
3 Sphalerite
4 Chalcopyrite
Explanation:
(d)Chalcopyrite\((CuFe{S_2})\)
GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS
25858
The principal ores of silver are argentite, horn silver and pyrargyrite. Their formula respectively are
1 \(A{g_2}S,\,AgCl\) and \(AgSb{S_2}\)
2 \(AgCl,\,AgSb{S_2}\) and \(A{g_2}S\)
3 \(AgSb{S_2},\,A{g_2}S\) and \(AgCl\)
4 \(AgCl,\,A{g_2}S\) and \(AgSb{S_2}\)
Explanation:
Argentite is \(Ag _2 S\), Horn Silver is \(AgCl\) and Pyrargyrite is \(AbSbS _2\).