189737
Which of the following statement is correct with respect to the property of elements in the carbon family with an increase in atomic number, their
1 Atomic size decreases
2 Ionization energy increases
3 Metallic character decreases
4 Stability of \(+2\) oxidation state increases
Explanation:
(d) In carbon family stability \(+2\) oxidation state increases on moving down the group in the periodic table with an increase in atomic number due to screening effect.
11. THE P-BLOCK ELEMENTS
189738
When tin is treated with concentrated nitric acid
1 It is converted into stannous nitrate
2 It is converted into stannic nitrate
3 It is converted into metastannic acid
4 It becomes passive
Explanation:
(c) Tin is oxidised to meta stannic acid when it is treated with nitric acid. \(Sn + 4HN{O_3} \to {H_2}Sn{O_3} + 4N{O_2} + {H_2}O\)
11. THE P-BLOCK ELEMENTS
189739
Solder is an alloy of
1 \(Pb + Zn + Sn\)
2 \(Pb + Zn\)
3 \(Pb + Sn\)
4 \(Sn + Zn\)
Explanation:
(c)\(Pb + Sn\)
11. THE P-BLOCK ELEMENTS
189740
A metal used in storage batteries is
1 Copper
2 Lead
3 Tin
4 Nickel
Explanation:
\(Pb\) metal used in secondary cell which is a lead storage battery. Overall reaction in the battery \(Pb ( s )+ PbO _2( s )+2 H _2 SO _4( aq ) \rightarrow 2 P bSO _4( s )+2 H _2 O ( g )\)
11. THE P-BLOCK ELEMENTS
189741
Name of the structure of silicates in which three oxygen atoms of \([SiO4]^{4-}\) are shared is
1 Pyrosilicate
2 Three dimensional silicate
3 Linear chain silicate
4 Sheet silicate
Explanation:
In sheet silicates, three out of four oxygen of \(S i O_{4}^{4-}\) unit are shared as shown below : In pyrosilicates, there is only one shared oxygen, in linear chain silicates, two oxygen per tetrahedra are shared while in three-dimensional silicates, all four oxygens are shared.
189737
Which of the following statement is correct with respect to the property of elements in the carbon family with an increase in atomic number, their
1 Atomic size decreases
2 Ionization energy increases
3 Metallic character decreases
4 Stability of \(+2\) oxidation state increases
Explanation:
(d) In carbon family stability \(+2\) oxidation state increases on moving down the group in the periodic table with an increase in atomic number due to screening effect.
11. THE P-BLOCK ELEMENTS
189738
When tin is treated with concentrated nitric acid
1 It is converted into stannous nitrate
2 It is converted into stannic nitrate
3 It is converted into metastannic acid
4 It becomes passive
Explanation:
(c) Tin is oxidised to meta stannic acid when it is treated with nitric acid. \(Sn + 4HN{O_3} \to {H_2}Sn{O_3} + 4N{O_2} + {H_2}O\)
11. THE P-BLOCK ELEMENTS
189739
Solder is an alloy of
1 \(Pb + Zn + Sn\)
2 \(Pb + Zn\)
3 \(Pb + Sn\)
4 \(Sn + Zn\)
Explanation:
(c)\(Pb + Sn\)
11. THE P-BLOCK ELEMENTS
189740
A metal used in storage batteries is
1 Copper
2 Lead
3 Tin
4 Nickel
Explanation:
\(Pb\) metal used in secondary cell which is a lead storage battery. Overall reaction in the battery \(Pb ( s )+ PbO _2( s )+2 H _2 SO _4( aq ) \rightarrow 2 P bSO _4( s )+2 H _2 O ( g )\)
11. THE P-BLOCK ELEMENTS
189741
Name of the structure of silicates in which three oxygen atoms of \([SiO4]^{4-}\) are shared is
1 Pyrosilicate
2 Three dimensional silicate
3 Linear chain silicate
4 Sheet silicate
Explanation:
In sheet silicates, three out of four oxygen of \(S i O_{4}^{4-}\) unit are shared as shown below : In pyrosilicates, there is only one shared oxygen, in linear chain silicates, two oxygen per tetrahedra are shared while in three-dimensional silicates, all four oxygens are shared.
189737
Which of the following statement is correct with respect to the property of elements in the carbon family with an increase in atomic number, their
1 Atomic size decreases
2 Ionization energy increases
3 Metallic character decreases
4 Stability of \(+2\) oxidation state increases
Explanation:
(d) In carbon family stability \(+2\) oxidation state increases on moving down the group in the periodic table with an increase in atomic number due to screening effect.
11. THE P-BLOCK ELEMENTS
189738
When tin is treated with concentrated nitric acid
1 It is converted into stannous nitrate
2 It is converted into stannic nitrate
3 It is converted into metastannic acid
4 It becomes passive
Explanation:
(c) Tin is oxidised to meta stannic acid when it is treated with nitric acid. \(Sn + 4HN{O_3} \to {H_2}Sn{O_3} + 4N{O_2} + {H_2}O\)
11. THE P-BLOCK ELEMENTS
189739
Solder is an alloy of
1 \(Pb + Zn + Sn\)
2 \(Pb + Zn\)
3 \(Pb + Sn\)
4 \(Sn + Zn\)
Explanation:
(c)\(Pb + Sn\)
11. THE P-BLOCK ELEMENTS
189740
A metal used in storage batteries is
1 Copper
2 Lead
3 Tin
4 Nickel
Explanation:
\(Pb\) metal used in secondary cell which is a lead storage battery. Overall reaction in the battery \(Pb ( s )+ PbO _2( s )+2 H _2 SO _4( aq ) \rightarrow 2 P bSO _4( s )+2 H _2 O ( g )\)
11. THE P-BLOCK ELEMENTS
189741
Name of the structure of silicates in which three oxygen atoms of \([SiO4]^{4-}\) are shared is
1 Pyrosilicate
2 Three dimensional silicate
3 Linear chain silicate
4 Sheet silicate
Explanation:
In sheet silicates, three out of four oxygen of \(S i O_{4}^{4-}\) unit are shared as shown below : In pyrosilicates, there is only one shared oxygen, in linear chain silicates, two oxygen per tetrahedra are shared while in three-dimensional silicates, all four oxygens are shared.
189737
Which of the following statement is correct with respect to the property of elements in the carbon family with an increase in atomic number, their
1 Atomic size decreases
2 Ionization energy increases
3 Metallic character decreases
4 Stability of \(+2\) oxidation state increases
Explanation:
(d) In carbon family stability \(+2\) oxidation state increases on moving down the group in the periodic table with an increase in atomic number due to screening effect.
11. THE P-BLOCK ELEMENTS
189738
When tin is treated with concentrated nitric acid
1 It is converted into stannous nitrate
2 It is converted into stannic nitrate
3 It is converted into metastannic acid
4 It becomes passive
Explanation:
(c) Tin is oxidised to meta stannic acid when it is treated with nitric acid. \(Sn + 4HN{O_3} \to {H_2}Sn{O_3} + 4N{O_2} + {H_2}O\)
11. THE P-BLOCK ELEMENTS
189739
Solder is an alloy of
1 \(Pb + Zn + Sn\)
2 \(Pb + Zn\)
3 \(Pb + Sn\)
4 \(Sn + Zn\)
Explanation:
(c)\(Pb + Sn\)
11. THE P-BLOCK ELEMENTS
189740
A metal used in storage batteries is
1 Copper
2 Lead
3 Tin
4 Nickel
Explanation:
\(Pb\) metal used in secondary cell which is a lead storage battery. Overall reaction in the battery \(Pb ( s )+ PbO _2( s )+2 H _2 SO _4( aq ) \rightarrow 2 P bSO _4( s )+2 H _2 O ( g )\)
11. THE P-BLOCK ELEMENTS
189741
Name of the structure of silicates in which three oxygen atoms of \([SiO4]^{4-}\) are shared is
1 Pyrosilicate
2 Three dimensional silicate
3 Linear chain silicate
4 Sheet silicate
Explanation:
In sheet silicates, three out of four oxygen of \(S i O_{4}^{4-}\) unit are shared as shown below : In pyrosilicates, there is only one shared oxygen, in linear chain silicates, two oxygen per tetrahedra are shared while in three-dimensional silicates, all four oxygens are shared.
189737
Which of the following statement is correct with respect to the property of elements in the carbon family with an increase in atomic number, their
1 Atomic size decreases
2 Ionization energy increases
3 Metallic character decreases
4 Stability of \(+2\) oxidation state increases
Explanation:
(d) In carbon family stability \(+2\) oxidation state increases on moving down the group in the periodic table with an increase in atomic number due to screening effect.
11. THE P-BLOCK ELEMENTS
189738
When tin is treated with concentrated nitric acid
1 It is converted into stannous nitrate
2 It is converted into stannic nitrate
3 It is converted into metastannic acid
4 It becomes passive
Explanation:
(c) Tin is oxidised to meta stannic acid when it is treated with nitric acid. \(Sn + 4HN{O_3} \to {H_2}Sn{O_3} + 4N{O_2} + {H_2}O\)
11. THE P-BLOCK ELEMENTS
189739
Solder is an alloy of
1 \(Pb + Zn + Sn\)
2 \(Pb + Zn\)
3 \(Pb + Sn\)
4 \(Sn + Zn\)
Explanation:
(c)\(Pb + Sn\)
11. THE P-BLOCK ELEMENTS
189740
A metal used in storage batteries is
1 Copper
2 Lead
3 Tin
4 Nickel
Explanation:
\(Pb\) metal used in secondary cell which is a lead storage battery. Overall reaction in the battery \(Pb ( s )+ PbO _2( s )+2 H _2 SO _4( aq ) \rightarrow 2 P bSO _4( s )+2 H _2 O ( g )\)
11. THE P-BLOCK ELEMENTS
189741
Name of the structure of silicates in which three oxygen atoms of \([SiO4]^{4-}\) are shared is
1 Pyrosilicate
2 Three dimensional silicate
3 Linear chain silicate
4 Sheet silicate
Explanation:
In sheet silicates, three out of four oxygen of \(S i O_{4}^{4-}\) unit are shared as shown below : In pyrosilicates, there is only one shared oxygen, in linear chain silicates, two oxygen per tetrahedra are shared while in three-dimensional silicates, all four oxygens are shared.
