GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS
25838
Cryolite is an ore of
1 Iron
2 Silver
3 Zinc
4 Aluminium
Explanation:
Cryolite is \(Na _3 AlF _6\), which consists of Aluminium, Sodium and Fluorine.
GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS
25839
Cassiterite is an ore of
1 \(Mn\)
2 \(Ni\)
3 \(Sb\)
4 \(Sn\)
Explanation:
Cassiterite is an ore of \(Sn\). It is also called tinstone and has molecular formula of \(SnO _2\). It is heavy, metallic, hard tin dioxide that is the major ore of tin. It is colourless when pure, but brown or black when iron impurities are present.
GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS
25840
Which one of the following is the most abundant element in the universe
1 Nitrogen
2 Hydrogen
3 Oxygen
4 Silicon
Explanation:
Hydrogen is the most abundant element in the Universe.
GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS
25841
Among the following statements, the incorrect one is
1 Calamine and siderite are carbonates
2 Argentite and cuprite are oxides
3 Zinc blende and pyrites are sulphides
4 Malachite and azurite are ores of copper
Explanation:
(b)Cuprite\((C{u_2}O)\) and Argentite\((A{g_2}S)\)
GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS
25838
Cryolite is an ore of
1 Iron
2 Silver
3 Zinc
4 Aluminium
Explanation:
Cryolite is \(Na _3 AlF _6\), which consists of Aluminium, Sodium and Fluorine.
GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS
25839
Cassiterite is an ore of
1 \(Mn\)
2 \(Ni\)
3 \(Sb\)
4 \(Sn\)
Explanation:
Cassiterite is an ore of \(Sn\). It is also called tinstone and has molecular formula of \(SnO _2\). It is heavy, metallic, hard tin dioxide that is the major ore of tin. It is colourless when pure, but brown or black when iron impurities are present.
GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS
25840
Which one of the following is the most abundant element in the universe
1 Nitrogen
2 Hydrogen
3 Oxygen
4 Silicon
Explanation:
Hydrogen is the most abundant element in the Universe.
GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS
25841
Among the following statements, the incorrect one is
1 Calamine and siderite are carbonates
2 Argentite and cuprite are oxides
3 Zinc blende and pyrites are sulphides
4 Malachite and azurite are ores of copper
Explanation:
(b)Cuprite\((C{u_2}O)\) and Argentite\((A{g_2}S)\)
GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS
25838
Cryolite is an ore of
1 Iron
2 Silver
3 Zinc
4 Aluminium
Explanation:
Cryolite is \(Na _3 AlF _6\), which consists of Aluminium, Sodium and Fluorine.
GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS
25839
Cassiterite is an ore of
1 \(Mn\)
2 \(Ni\)
3 \(Sb\)
4 \(Sn\)
Explanation:
Cassiterite is an ore of \(Sn\). It is also called tinstone and has molecular formula of \(SnO _2\). It is heavy, metallic, hard tin dioxide that is the major ore of tin. It is colourless when pure, but brown or black when iron impurities are present.
GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS
25840
Which one of the following is the most abundant element in the universe
1 Nitrogen
2 Hydrogen
3 Oxygen
4 Silicon
Explanation:
Hydrogen is the most abundant element in the Universe.
GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS
25841
Among the following statements, the incorrect one is
1 Calamine and siderite are carbonates
2 Argentite and cuprite are oxides
3 Zinc blende and pyrites are sulphides
4 Malachite and azurite are ores of copper
Explanation:
(b)Cuprite\((C{u_2}O)\) and Argentite\((A{g_2}S)\)
GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS
25838
Cryolite is an ore of
1 Iron
2 Silver
3 Zinc
4 Aluminium
Explanation:
Cryolite is \(Na _3 AlF _6\), which consists of Aluminium, Sodium and Fluorine.
GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS
25839
Cassiterite is an ore of
1 \(Mn\)
2 \(Ni\)
3 \(Sb\)
4 \(Sn\)
Explanation:
Cassiterite is an ore of \(Sn\). It is also called tinstone and has molecular formula of \(SnO _2\). It is heavy, metallic, hard tin dioxide that is the major ore of tin. It is colourless when pure, but brown or black when iron impurities are present.
GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS
25840
Which one of the following is the most abundant element in the universe
1 Nitrogen
2 Hydrogen
3 Oxygen
4 Silicon
Explanation:
Hydrogen is the most abundant element in the Universe.
GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS
25841
Among the following statements, the incorrect one is
1 Calamine and siderite are carbonates
2 Argentite and cuprite are oxides
3 Zinc blende and pyrites are sulphides
4 Malachite and azurite are ores of copper
Explanation:
(b)Cuprite\((C{u_2}O)\) and Argentite\((A{g_2}S)\)
