Nitrogen and Its Compounds
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CHXI11:THE P-BLOCK ELEMENTS

316712 Which of the following is obtained by catalytic oxidation of ammonia?

1 \(\mathrm{N}_{2} \mathrm{O}\)
2 \(\mathrm{NO}\)
3 \(\mathrm{HNO}_{2}\)
4 \({\rm{N}}{{\rm{O}}_{\rm{2}}}\)
MHTCET - 2020
CHXI11:THE P-BLOCK ELEMENTS

316713 Ammonia reacts with Nessler's reagent to give

1 Deep blue precipitate
2 White precipitate
3 Green precipitate
4 Brown precipitate
CHXI11:THE P-BLOCK ELEMENTS

316714 A balanced chemical equation for the reaction showing catalytic oxidation of \(\mathrm{NH}_{3}\) by atmospheric oxygen is

1 \({\text{4N}}{{\text{H}}_{\text{3}}}{\text{ + }}\mathop {{\text{5}}{{\text{O}}_{\text{2}}}}\limits_{\left( {{\text{From}}\;{\text{air}}} \right)} \xrightarrow[{{\text{500K,}}\,\,{\text{9}}\,{\text{bar}}}]{{{\text{Pt/Rh}}\,\,{\text{gauge}}\,\,{\text{catalyst}}}}{\text{4NO + 6}}{{\text{H}}_{\text{2}}}{\text{O}}\)
2 \({\text{N}}{{\text{H}}_{\text{3}}}{\text{ + }}\mathop {{{\text{O}}_{\text{2}}}}\limits_{{\text{(Fromair)}}} \xrightarrow[{{\text{500}}\;{\text{K,}}\,\,{\text{9bar}}}]{{{\text{Pt/Rh}}\,\,{\text{gauge}}\,\,{\text{catalyst}}}}{\text{NO + }}{{\text{H}}_{\text{2}}}{\text{O}}\)
3 \(4{\text{N}}{{\text{H}}_3} + \mathop {10\,\,{{\text{O}}_2}}\limits_{{\text{ (From air) }}} \xrightarrow[{\mathop {500{\text{K}},\,9{\text{bar }}}\limits_{{\text{ }}} }]{{{\text{Pt/Rh gauge catalyst}}}}4{\text{NO}} + 6{{\text{H}}_2}{\text{O}}\)
4 \({\text{4N}}{{\text{H}}_{\text{3}}}{\text{ + }}\mathop {{\text{5}}{{\text{O}}_{\text{2}}}}\limits_{{\text{ (From air) }}} \xrightarrow[{\mathop {{\text{500}}\,{\text{K,}}\,\,{\text{9}}\,{\text{bar}}}\limits^{{\text{ }}} }]{{{\text{Pt/Rh gauge catalyst}}}}{\text{4NO + 6}}{{\text{H}}_{\text{2}}}\)
CHXI11:THE P-BLOCK ELEMENTS

316715 In qualitative analysis when \(\mathrm{H}_{2} \mathrm{~S}\) is passed through an aqueous solution of salt acidified with dil. \(\mathrm{HCl}\), a black precipitate is obtained. On boiling the precipitate with dil. \(\mathrm{HNO}_{3}\), it forms a solution of blue colour. Addition of excess of aqueous solution of ammonia to this solution gives

1 Deep blue precipitate of \(\mathrm{Cu}(\mathrm{OH})_{2}\)
2 Deep blue solution of \(\left[\mathrm{Cu}\left(\mathrm{NH}_{3}\right)_{4}\right]^{2+}\)
3 Deep blue solution of \(\mathrm{Cu}\left(\mathrm{NO}_{3}\right)_{2}\)
4 Deep blue solution of \(\mathrm{Cu}(\mathrm{OH})_{2} \cdot \mathrm{Cu}\left(\mathrm{NO}_{3}\right)_{2}\)
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CHXI11:THE P-BLOCK ELEMENTS

316712 Which of the following is obtained by catalytic oxidation of ammonia?

1 \(\mathrm{N}_{2} \mathrm{O}\)
2 \(\mathrm{NO}\)
3 \(\mathrm{HNO}_{2}\)
4 \({\rm{N}}{{\rm{O}}_{\rm{2}}}\)
MHTCET - 2020
CHXI11:THE P-BLOCK ELEMENTS

316713 Ammonia reacts with Nessler's reagent to give

1 Deep blue precipitate
2 White precipitate
3 Green precipitate
4 Brown precipitate
CHXI11:THE P-BLOCK ELEMENTS

316714 A balanced chemical equation for the reaction showing catalytic oxidation of \(\mathrm{NH}_{3}\) by atmospheric oxygen is

1 \({\text{4N}}{{\text{H}}_{\text{3}}}{\text{ + }}\mathop {{\text{5}}{{\text{O}}_{\text{2}}}}\limits_{\left( {{\text{From}}\;{\text{air}}} \right)} \xrightarrow[{{\text{500K,}}\,\,{\text{9}}\,{\text{bar}}}]{{{\text{Pt/Rh}}\,\,{\text{gauge}}\,\,{\text{catalyst}}}}{\text{4NO + 6}}{{\text{H}}_{\text{2}}}{\text{O}}\)
2 \({\text{N}}{{\text{H}}_{\text{3}}}{\text{ + }}\mathop {{{\text{O}}_{\text{2}}}}\limits_{{\text{(Fromair)}}} \xrightarrow[{{\text{500}}\;{\text{K,}}\,\,{\text{9bar}}}]{{{\text{Pt/Rh}}\,\,{\text{gauge}}\,\,{\text{catalyst}}}}{\text{NO + }}{{\text{H}}_{\text{2}}}{\text{O}}\)
3 \(4{\text{N}}{{\text{H}}_3} + \mathop {10\,\,{{\text{O}}_2}}\limits_{{\text{ (From air) }}} \xrightarrow[{\mathop {500{\text{K}},\,9{\text{bar }}}\limits_{{\text{ }}} }]{{{\text{Pt/Rh gauge catalyst}}}}4{\text{NO}} + 6{{\text{H}}_2}{\text{O}}\)
4 \({\text{4N}}{{\text{H}}_{\text{3}}}{\text{ + }}\mathop {{\text{5}}{{\text{O}}_{\text{2}}}}\limits_{{\text{ (From air) }}} \xrightarrow[{\mathop {{\text{500}}\,{\text{K,}}\,\,{\text{9}}\,{\text{bar}}}\limits^{{\text{ }}} }]{{{\text{Pt/Rh gauge catalyst}}}}{\text{4NO + 6}}{{\text{H}}_{\text{2}}}\)
CHXI11:THE P-BLOCK ELEMENTS

316715 In qualitative analysis when \(\mathrm{H}_{2} \mathrm{~S}\) is passed through an aqueous solution of salt acidified with dil. \(\mathrm{HCl}\), a black precipitate is obtained. On boiling the precipitate with dil. \(\mathrm{HNO}_{3}\), it forms a solution of blue colour. Addition of excess of aqueous solution of ammonia to this solution gives

1 Deep blue precipitate of \(\mathrm{Cu}(\mathrm{OH})_{2}\)
2 Deep blue solution of \(\left[\mathrm{Cu}\left(\mathrm{NH}_{3}\right)_{4}\right]^{2+}\)
3 Deep blue solution of \(\mathrm{Cu}\left(\mathrm{NO}_{3}\right)_{2}\)
4 Deep blue solution of \(\mathrm{Cu}(\mathrm{OH})_{2} \cdot \mathrm{Cu}\left(\mathrm{NO}_{3}\right)_{2}\)
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CHXI11:THE P-BLOCK ELEMENTS

316712 Which of the following is obtained by catalytic oxidation of ammonia?

1 \(\mathrm{N}_{2} \mathrm{O}\)
2 \(\mathrm{NO}\)
3 \(\mathrm{HNO}_{2}\)
4 \({\rm{N}}{{\rm{O}}_{\rm{2}}}\)
MHTCET - 2020
CHXI11:THE P-BLOCK ELEMENTS

316713 Ammonia reacts with Nessler's reagent to give

1 Deep blue precipitate
2 White precipitate
3 Green precipitate
4 Brown precipitate
CHXI11:THE P-BLOCK ELEMENTS

316714 A balanced chemical equation for the reaction showing catalytic oxidation of \(\mathrm{NH}_{3}\) by atmospheric oxygen is

1 \({\text{4N}}{{\text{H}}_{\text{3}}}{\text{ + }}\mathop {{\text{5}}{{\text{O}}_{\text{2}}}}\limits_{\left( {{\text{From}}\;{\text{air}}} \right)} \xrightarrow[{{\text{500K,}}\,\,{\text{9}}\,{\text{bar}}}]{{{\text{Pt/Rh}}\,\,{\text{gauge}}\,\,{\text{catalyst}}}}{\text{4NO + 6}}{{\text{H}}_{\text{2}}}{\text{O}}\)
2 \({\text{N}}{{\text{H}}_{\text{3}}}{\text{ + }}\mathop {{{\text{O}}_{\text{2}}}}\limits_{{\text{(Fromair)}}} \xrightarrow[{{\text{500}}\;{\text{K,}}\,\,{\text{9bar}}}]{{{\text{Pt/Rh}}\,\,{\text{gauge}}\,\,{\text{catalyst}}}}{\text{NO + }}{{\text{H}}_{\text{2}}}{\text{O}}\)
3 \(4{\text{N}}{{\text{H}}_3} + \mathop {10\,\,{{\text{O}}_2}}\limits_{{\text{ (From air) }}} \xrightarrow[{\mathop {500{\text{K}},\,9{\text{bar }}}\limits_{{\text{ }}} }]{{{\text{Pt/Rh gauge catalyst}}}}4{\text{NO}} + 6{{\text{H}}_2}{\text{O}}\)
4 \({\text{4N}}{{\text{H}}_{\text{3}}}{\text{ + }}\mathop {{\text{5}}{{\text{O}}_{\text{2}}}}\limits_{{\text{ (From air) }}} \xrightarrow[{\mathop {{\text{500}}\,{\text{K,}}\,\,{\text{9}}\,{\text{bar}}}\limits^{{\text{ }}} }]{{{\text{Pt/Rh gauge catalyst}}}}{\text{4NO + 6}}{{\text{H}}_{\text{2}}}\)
CHXI11:THE P-BLOCK ELEMENTS

316715 In qualitative analysis when \(\mathrm{H}_{2} \mathrm{~S}\) is passed through an aqueous solution of salt acidified with dil. \(\mathrm{HCl}\), a black precipitate is obtained. On boiling the precipitate with dil. \(\mathrm{HNO}_{3}\), it forms a solution of blue colour. Addition of excess of aqueous solution of ammonia to this solution gives

1 Deep blue precipitate of \(\mathrm{Cu}(\mathrm{OH})_{2}\)
2 Deep blue solution of \(\left[\mathrm{Cu}\left(\mathrm{NH}_{3}\right)_{4}\right]^{2+}\)
3 Deep blue solution of \(\mathrm{Cu}\left(\mathrm{NO}_{3}\right)_{2}\)
4 Deep blue solution of \(\mathrm{Cu}(\mathrm{OH})_{2} \cdot \mathrm{Cu}\left(\mathrm{NO}_{3}\right)_{2}\)
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CHXI11:THE P-BLOCK ELEMENTS

316712 Which of the following is obtained by catalytic oxidation of ammonia?

1 \(\mathrm{N}_{2} \mathrm{O}\)
2 \(\mathrm{NO}\)
3 \(\mathrm{HNO}_{2}\)
4 \({\rm{N}}{{\rm{O}}_{\rm{2}}}\)
MHTCET - 2020
CHXI11:THE P-BLOCK ELEMENTS

316713 Ammonia reacts with Nessler's reagent to give

1 Deep blue precipitate
2 White precipitate
3 Green precipitate
4 Brown precipitate
CHXI11:THE P-BLOCK ELEMENTS

316714 A balanced chemical equation for the reaction showing catalytic oxidation of \(\mathrm{NH}_{3}\) by atmospheric oxygen is

1 \({\text{4N}}{{\text{H}}_{\text{3}}}{\text{ + }}\mathop {{\text{5}}{{\text{O}}_{\text{2}}}}\limits_{\left( {{\text{From}}\;{\text{air}}} \right)} \xrightarrow[{{\text{500K,}}\,\,{\text{9}}\,{\text{bar}}}]{{{\text{Pt/Rh}}\,\,{\text{gauge}}\,\,{\text{catalyst}}}}{\text{4NO + 6}}{{\text{H}}_{\text{2}}}{\text{O}}\)
2 \({\text{N}}{{\text{H}}_{\text{3}}}{\text{ + }}\mathop {{{\text{O}}_{\text{2}}}}\limits_{{\text{(Fromair)}}} \xrightarrow[{{\text{500}}\;{\text{K,}}\,\,{\text{9bar}}}]{{{\text{Pt/Rh}}\,\,{\text{gauge}}\,\,{\text{catalyst}}}}{\text{NO + }}{{\text{H}}_{\text{2}}}{\text{O}}\)
3 \(4{\text{N}}{{\text{H}}_3} + \mathop {10\,\,{{\text{O}}_2}}\limits_{{\text{ (From air) }}} \xrightarrow[{\mathop {500{\text{K}},\,9{\text{bar }}}\limits_{{\text{ }}} }]{{{\text{Pt/Rh gauge catalyst}}}}4{\text{NO}} + 6{{\text{H}}_2}{\text{O}}\)
4 \({\text{4N}}{{\text{H}}_{\text{3}}}{\text{ + }}\mathop {{\text{5}}{{\text{O}}_{\text{2}}}}\limits_{{\text{ (From air) }}} \xrightarrow[{\mathop {{\text{500}}\,{\text{K,}}\,\,{\text{9}}\,{\text{bar}}}\limits^{{\text{ }}} }]{{{\text{Pt/Rh gauge catalyst}}}}{\text{4NO + 6}}{{\text{H}}_{\text{2}}}\)
CHXI11:THE P-BLOCK ELEMENTS

316715 In qualitative analysis when \(\mathrm{H}_{2} \mathrm{~S}\) is passed through an aqueous solution of salt acidified with dil. \(\mathrm{HCl}\), a black precipitate is obtained. On boiling the precipitate with dil. \(\mathrm{HNO}_{3}\), it forms a solution of blue colour. Addition of excess of aqueous solution of ammonia to this solution gives

1 Deep blue precipitate of \(\mathrm{Cu}(\mathrm{OH})_{2}\)
2 Deep blue solution of \(\left[\mathrm{Cu}\left(\mathrm{NH}_{3}\right)_{4}\right]^{2+}\)
3 Deep blue solution of \(\mathrm{Cu}\left(\mathrm{NO}_{3}\right)_{2}\)
4 Deep blue solution of \(\mathrm{Cu}(\mathrm{OH})_{2} \cdot \mathrm{Cu}\left(\mathrm{NO}_{3}\right)_{2}\)
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