Nitrogen and Its Compounds
CHXI11:THE P-BLOCK ELEMENTS

316730 When \(\mathrm{PbO}_{2}\) reacts with concentrated \(\mathrm{HNO}_{3}\), the gas evolved is

1 \(\mathrm{NO}_{2}\)
2 \(\mathrm{O}_{2}\)
3 \(\mathrm{N}_{2}\)
4 \({{\rm{N}}_{\rm{2}}}{\rm{O}}\)
CHXI11:THE P-BLOCK ELEMENTS

316731 Among the following the number of metals which are rendered passive in the presence of conc. \({\text{HN}}{{\text{O}}_{\text{3}}}{\text{.}}\)
\({\text{Al,Sn,Pb,Fe,Cr,Zn,Ni,Hg,Cu}}{\text{.}}\)

1 1
2 8
3 6
4 4
CHXI11:THE P-BLOCK ELEMENTS

316732 On reaction of lead sulphide with dilute nitric acid which of the following is not formed?

1 Nitric oxide
2 Lead nitrate
3 Nitrous oxide
4 Sulphur
CHXI11:THE P-BLOCK ELEMENTS

316733 Iron is dropped in dil. \(\mathrm{HNO}_{3}\), it gives

1 ferric nitrate
2 ferric nitrate and \(\mathrm{NO}_{2}\)
3 ferrous nitrate and ammonium nitrate
4 ferrous nitrate and nitric oxide
CHXI11:THE P-BLOCK ELEMENTS

316734 Statement A :
When a metal is treated with conc. \(\mathrm{HNO}_{3}\) it generally yields a nitrate, \(\mathrm{NO}_{2}\) and \(\mathrm{H}_{2} \mathrm{O}\).
Statement B :
Conc. \(\mathrm{HNO}_{3}\) reacts with metal and first produces a metal nitrate and nascent hydrogen. The nascent hydrogen then further reduces \(\mathrm{HNO}_{3}\) to \(\mathrm{NO}_{2}\).

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
CHXI11:THE P-BLOCK ELEMENTS

316730 When \(\mathrm{PbO}_{2}\) reacts with concentrated \(\mathrm{HNO}_{3}\), the gas evolved is

1 \(\mathrm{NO}_{2}\)
2 \(\mathrm{O}_{2}\)
3 \(\mathrm{N}_{2}\)
4 \({{\rm{N}}_{\rm{2}}}{\rm{O}}\)
CHXI11:THE P-BLOCK ELEMENTS

316731 Among the following the number of metals which are rendered passive in the presence of conc. \({\text{HN}}{{\text{O}}_{\text{3}}}{\text{.}}\)
\({\text{Al,Sn,Pb,Fe,Cr,Zn,Ni,Hg,Cu}}{\text{.}}\)

1 1
2 8
3 6
4 4
CHXI11:THE P-BLOCK ELEMENTS

316732 On reaction of lead sulphide with dilute nitric acid which of the following is not formed?

1 Nitric oxide
2 Lead nitrate
3 Nitrous oxide
4 Sulphur
CHXI11:THE P-BLOCK ELEMENTS

316733 Iron is dropped in dil. \(\mathrm{HNO}_{3}\), it gives

1 ferric nitrate
2 ferric nitrate and \(\mathrm{NO}_{2}\)
3 ferrous nitrate and ammonium nitrate
4 ferrous nitrate and nitric oxide
CHXI11:THE P-BLOCK ELEMENTS

316734 Statement A :
When a metal is treated with conc. \(\mathrm{HNO}_{3}\) it generally yields a nitrate, \(\mathrm{NO}_{2}\) and \(\mathrm{H}_{2} \mathrm{O}\).
Statement B :
Conc. \(\mathrm{HNO}_{3}\) reacts with metal and first produces a metal nitrate and nascent hydrogen. The nascent hydrogen then further reduces \(\mathrm{HNO}_{3}\) to \(\mathrm{NO}_{2}\).

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
CHXI11:THE P-BLOCK ELEMENTS

316730 When \(\mathrm{PbO}_{2}\) reacts with concentrated \(\mathrm{HNO}_{3}\), the gas evolved is

1 \(\mathrm{NO}_{2}\)
2 \(\mathrm{O}_{2}\)
3 \(\mathrm{N}_{2}\)
4 \({{\rm{N}}_{\rm{2}}}{\rm{O}}\)
CHXI11:THE P-BLOCK ELEMENTS

316731 Among the following the number of metals which are rendered passive in the presence of conc. \({\text{HN}}{{\text{O}}_{\text{3}}}{\text{.}}\)
\({\text{Al,Sn,Pb,Fe,Cr,Zn,Ni,Hg,Cu}}{\text{.}}\)

1 1
2 8
3 6
4 4
CHXI11:THE P-BLOCK ELEMENTS

316732 On reaction of lead sulphide with dilute nitric acid which of the following is not formed?

1 Nitric oxide
2 Lead nitrate
3 Nitrous oxide
4 Sulphur
CHXI11:THE P-BLOCK ELEMENTS

316733 Iron is dropped in dil. \(\mathrm{HNO}_{3}\), it gives

1 ferric nitrate
2 ferric nitrate and \(\mathrm{NO}_{2}\)
3 ferrous nitrate and ammonium nitrate
4 ferrous nitrate and nitric oxide
CHXI11:THE P-BLOCK ELEMENTS

316734 Statement A :
When a metal is treated with conc. \(\mathrm{HNO}_{3}\) it generally yields a nitrate, \(\mathrm{NO}_{2}\) and \(\mathrm{H}_{2} \mathrm{O}\).
Statement B :
Conc. \(\mathrm{HNO}_{3}\) reacts with metal and first produces a metal nitrate and nascent hydrogen. The nascent hydrogen then further reduces \(\mathrm{HNO}_{3}\) to \(\mathrm{NO}_{2}\).

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
CHXI11:THE P-BLOCK ELEMENTS

316730 When \(\mathrm{PbO}_{2}\) reacts with concentrated \(\mathrm{HNO}_{3}\), the gas evolved is

1 \(\mathrm{NO}_{2}\)
2 \(\mathrm{O}_{2}\)
3 \(\mathrm{N}_{2}\)
4 \({{\rm{N}}_{\rm{2}}}{\rm{O}}\)
CHXI11:THE P-BLOCK ELEMENTS

316731 Among the following the number of metals which are rendered passive in the presence of conc. \({\text{HN}}{{\text{O}}_{\text{3}}}{\text{.}}\)
\({\text{Al,Sn,Pb,Fe,Cr,Zn,Ni,Hg,Cu}}{\text{.}}\)

1 1
2 8
3 6
4 4
CHXI11:THE P-BLOCK ELEMENTS

316732 On reaction of lead sulphide with dilute nitric acid which of the following is not formed?

1 Nitric oxide
2 Lead nitrate
3 Nitrous oxide
4 Sulphur
CHXI11:THE P-BLOCK ELEMENTS

316733 Iron is dropped in dil. \(\mathrm{HNO}_{3}\), it gives

1 ferric nitrate
2 ferric nitrate and \(\mathrm{NO}_{2}\)
3 ferrous nitrate and ammonium nitrate
4 ferrous nitrate and nitric oxide
CHXI11:THE P-BLOCK ELEMENTS

316734 Statement A :
When a metal is treated with conc. \(\mathrm{HNO}_{3}\) it generally yields a nitrate, \(\mathrm{NO}_{2}\) and \(\mathrm{H}_{2} \mathrm{O}\).
Statement B :
Conc. \(\mathrm{HNO}_{3}\) reacts with metal and first produces a metal nitrate and nascent hydrogen. The nascent hydrogen then further reduces \(\mathrm{HNO}_{3}\) to \(\mathrm{NO}_{2}\).

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
CHXI11:THE P-BLOCK ELEMENTS

316730 When \(\mathrm{PbO}_{2}\) reacts with concentrated \(\mathrm{HNO}_{3}\), the gas evolved is

1 \(\mathrm{NO}_{2}\)
2 \(\mathrm{O}_{2}\)
3 \(\mathrm{N}_{2}\)
4 \({{\rm{N}}_{\rm{2}}}{\rm{O}}\)
CHXI11:THE P-BLOCK ELEMENTS

316731 Among the following the number of metals which are rendered passive in the presence of conc. \({\text{HN}}{{\text{O}}_{\text{3}}}{\text{.}}\)
\({\text{Al,Sn,Pb,Fe,Cr,Zn,Ni,Hg,Cu}}{\text{.}}\)

1 1
2 8
3 6
4 4
CHXI11:THE P-BLOCK ELEMENTS

316732 On reaction of lead sulphide with dilute nitric acid which of the following is not formed?

1 Nitric oxide
2 Lead nitrate
3 Nitrous oxide
4 Sulphur
CHXI11:THE P-BLOCK ELEMENTS

316733 Iron is dropped in dil. \(\mathrm{HNO}_{3}\), it gives

1 ferric nitrate
2 ferric nitrate and \(\mathrm{NO}_{2}\)
3 ferrous nitrate and ammonium nitrate
4 ferrous nitrate and nitric oxide
CHXI11:THE P-BLOCK ELEMENTS

316734 Statement A :
When a metal is treated with conc. \(\mathrm{HNO}_{3}\) it generally yields a nitrate, \(\mathrm{NO}_{2}\) and \(\mathrm{H}_{2} \mathrm{O}\).
Statement B :
Conc. \(\mathrm{HNO}_{3}\) reacts with metal and first produces a metal nitrate and nascent hydrogen. The nascent hydrogen then further reduces \(\mathrm{HNO}_{3}\) to \(\mathrm{NO}_{2}\).

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.