324217
The acid used for the determination of molecular weights of amines is
1 \(\mathrm{H}_{2} \mathrm{PtCl}_{6}\)
2 Picric acid
3 \(\mathrm{HAuCl}_{4}\)
4 \(\mathrm{H}_{2} \mathrm{SO}_{4}\)
Explanation:
The acid used is \(\mathrm{H}_{2} \mathrm{PtCl}_{6}\). It is a solution of platinic chloride, \(\mathrm{PtCl}_{4}\) in con. \(\mathrm{HCl}\) \({\rm{2R - N}}{{\rm{H}}_{\rm{2}}}{\rm{ + }}{{\rm{H}}_{\rm{2}}}\left[ {{\rm{PtC}}{{\rm{l}}_{\rm{6}}}} \right] \to \mathop {{{\left[ {{\rm{R}}\,\,\,\,{\rm{N}}{{\rm{H}}_{\rm{3}}}} \right]}_{\rm{2}}}^{\rm{ + }}{{\left[ {{\rm{PtC}}{{\rm{l}}_{\rm{6}}}} \right]}^{{\rm{ - 2}}}}}\limits_{{\rm{alkyl amine platinichloride}}} \) Chloroplatinates on ignition leave a residue of metallic Pt. This reaction is employed in determining molecular weight of amines.
CHXII13:AMINES
324218
In which of the following reactions does the amine behaves as an acid?
\(\mathrm{n}-\mathrm{C}_{4} \mathrm{H}_{9} \mathrm{Li}\) (organometallic substance) behaves as Bronsted base so that amine behaves as an acid.
CHXII13:AMINES
324219
When aqueous solution of \(\mathrm{CH}_{3} \mathrm{NH}_{2}\) is treated with aqueous solution of a metal ion, reddish brown precipitate is formed. The metal ion is
1 \(\mathrm{Al}^{3+}\)
2 \(\mathrm{Cr}^{3+}\)
3 \(\mathrm{Fe}^{3+}\)
4 \(\mathrm{Fe}^{2+}\)
Explanation:
Ferric salts gives reddish brown precipitate because of formation of hydroxide. \(\mathrm{FeCl}_{3}+3 \mathrm{CH}_{3} \mathrm{~N}^{+} \mathrm{H}_{3} \mathrm{OH}^{-} \rightarrow \mathrm{Fe}(\mathrm{OH})_{3}+\) \(3 \mathrm{CH}_{3} \mathrm{~N}^{+} \mathrm{H}_{3} \mathrm{Cl}^{-}\)
CHXII13:AMINES
324220
Treatment of ethyl amine and methyl magnesium halide produces a gaseous substance \(\mathrm{X}\). \(\mathrm{X}\) is
324217
The acid used for the determination of molecular weights of amines is
1 \(\mathrm{H}_{2} \mathrm{PtCl}_{6}\)
2 Picric acid
3 \(\mathrm{HAuCl}_{4}\)
4 \(\mathrm{H}_{2} \mathrm{SO}_{4}\)
Explanation:
The acid used is \(\mathrm{H}_{2} \mathrm{PtCl}_{6}\). It is a solution of platinic chloride, \(\mathrm{PtCl}_{4}\) in con. \(\mathrm{HCl}\) \({\rm{2R - N}}{{\rm{H}}_{\rm{2}}}{\rm{ + }}{{\rm{H}}_{\rm{2}}}\left[ {{\rm{PtC}}{{\rm{l}}_{\rm{6}}}} \right] \to \mathop {{{\left[ {{\rm{R}}\,\,\,\,{\rm{N}}{{\rm{H}}_{\rm{3}}}} \right]}_{\rm{2}}}^{\rm{ + }}{{\left[ {{\rm{PtC}}{{\rm{l}}_{\rm{6}}}} \right]}^{{\rm{ - 2}}}}}\limits_{{\rm{alkyl amine platinichloride}}} \) Chloroplatinates on ignition leave a residue of metallic Pt. This reaction is employed in determining molecular weight of amines.
CHXII13:AMINES
324218
In which of the following reactions does the amine behaves as an acid?
\(\mathrm{n}-\mathrm{C}_{4} \mathrm{H}_{9} \mathrm{Li}\) (organometallic substance) behaves as Bronsted base so that amine behaves as an acid.
CHXII13:AMINES
324219
When aqueous solution of \(\mathrm{CH}_{3} \mathrm{NH}_{2}\) is treated with aqueous solution of a metal ion, reddish brown precipitate is formed. The metal ion is
1 \(\mathrm{Al}^{3+}\)
2 \(\mathrm{Cr}^{3+}\)
3 \(\mathrm{Fe}^{3+}\)
4 \(\mathrm{Fe}^{2+}\)
Explanation:
Ferric salts gives reddish brown precipitate because of formation of hydroxide. \(\mathrm{FeCl}_{3}+3 \mathrm{CH}_{3} \mathrm{~N}^{+} \mathrm{H}_{3} \mathrm{OH}^{-} \rightarrow \mathrm{Fe}(\mathrm{OH})_{3}+\) \(3 \mathrm{CH}_{3} \mathrm{~N}^{+} \mathrm{H}_{3} \mathrm{Cl}^{-}\)
CHXII13:AMINES
324220
Treatment of ethyl amine and methyl magnesium halide produces a gaseous substance \(\mathrm{X}\). \(\mathrm{X}\) is
324217
The acid used for the determination of molecular weights of amines is
1 \(\mathrm{H}_{2} \mathrm{PtCl}_{6}\)
2 Picric acid
3 \(\mathrm{HAuCl}_{4}\)
4 \(\mathrm{H}_{2} \mathrm{SO}_{4}\)
Explanation:
The acid used is \(\mathrm{H}_{2} \mathrm{PtCl}_{6}\). It is a solution of platinic chloride, \(\mathrm{PtCl}_{4}\) in con. \(\mathrm{HCl}\) \({\rm{2R - N}}{{\rm{H}}_{\rm{2}}}{\rm{ + }}{{\rm{H}}_{\rm{2}}}\left[ {{\rm{PtC}}{{\rm{l}}_{\rm{6}}}} \right] \to \mathop {{{\left[ {{\rm{R}}\,\,\,\,{\rm{N}}{{\rm{H}}_{\rm{3}}}} \right]}_{\rm{2}}}^{\rm{ + }}{{\left[ {{\rm{PtC}}{{\rm{l}}_{\rm{6}}}} \right]}^{{\rm{ - 2}}}}}\limits_{{\rm{alkyl amine platinichloride}}} \) Chloroplatinates on ignition leave a residue of metallic Pt. This reaction is employed in determining molecular weight of amines.
CHXII13:AMINES
324218
In which of the following reactions does the amine behaves as an acid?
\(\mathrm{n}-\mathrm{C}_{4} \mathrm{H}_{9} \mathrm{Li}\) (organometallic substance) behaves as Bronsted base so that amine behaves as an acid.
CHXII13:AMINES
324219
When aqueous solution of \(\mathrm{CH}_{3} \mathrm{NH}_{2}\) is treated with aqueous solution of a metal ion, reddish brown precipitate is formed. The metal ion is
1 \(\mathrm{Al}^{3+}\)
2 \(\mathrm{Cr}^{3+}\)
3 \(\mathrm{Fe}^{3+}\)
4 \(\mathrm{Fe}^{2+}\)
Explanation:
Ferric salts gives reddish brown precipitate because of formation of hydroxide. \(\mathrm{FeCl}_{3}+3 \mathrm{CH}_{3} \mathrm{~N}^{+} \mathrm{H}_{3} \mathrm{OH}^{-} \rightarrow \mathrm{Fe}(\mathrm{OH})_{3}+\) \(3 \mathrm{CH}_{3} \mathrm{~N}^{+} \mathrm{H}_{3} \mathrm{Cl}^{-}\)
CHXII13:AMINES
324220
Treatment of ethyl amine and methyl magnesium halide produces a gaseous substance \(\mathrm{X}\). \(\mathrm{X}\) is
324217
The acid used for the determination of molecular weights of amines is
1 \(\mathrm{H}_{2} \mathrm{PtCl}_{6}\)
2 Picric acid
3 \(\mathrm{HAuCl}_{4}\)
4 \(\mathrm{H}_{2} \mathrm{SO}_{4}\)
Explanation:
The acid used is \(\mathrm{H}_{2} \mathrm{PtCl}_{6}\). It is a solution of platinic chloride, \(\mathrm{PtCl}_{4}\) in con. \(\mathrm{HCl}\) \({\rm{2R - N}}{{\rm{H}}_{\rm{2}}}{\rm{ + }}{{\rm{H}}_{\rm{2}}}\left[ {{\rm{PtC}}{{\rm{l}}_{\rm{6}}}} \right] \to \mathop {{{\left[ {{\rm{R}}\,\,\,\,{\rm{N}}{{\rm{H}}_{\rm{3}}}} \right]}_{\rm{2}}}^{\rm{ + }}{{\left[ {{\rm{PtC}}{{\rm{l}}_{\rm{6}}}} \right]}^{{\rm{ - 2}}}}}\limits_{{\rm{alkyl amine platinichloride}}} \) Chloroplatinates on ignition leave a residue of metallic Pt. This reaction is employed in determining molecular weight of amines.
CHXII13:AMINES
324218
In which of the following reactions does the amine behaves as an acid?
\(\mathrm{n}-\mathrm{C}_{4} \mathrm{H}_{9} \mathrm{Li}\) (organometallic substance) behaves as Bronsted base so that amine behaves as an acid.
CHXII13:AMINES
324219
When aqueous solution of \(\mathrm{CH}_{3} \mathrm{NH}_{2}\) is treated with aqueous solution of a metal ion, reddish brown precipitate is formed. The metal ion is
1 \(\mathrm{Al}^{3+}\)
2 \(\mathrm{Cr}^{3+}\)
3 \(\mathrm{Fe}^{3+}\)
4 \(\mathrm{Fe}^{2+}\)
Explanation:
Ferric salts gives reddish brown precipitate because of formation of hydroxide. \(\mathrm{FeCl}_{3}+3 \mathrm{CH}_{3} \mathrm{~N}^{+} \mathrm{H}_{3} \mathrm{OH}^{-} \rightarrow \mathrm{Fe}(\mathrm{OH})_{3}+\) \(3 \mathrm{CH}_{3} \mathrm{~N}^{+} \mathrm{H}_{3} \mathrm{Cl}^{-}\)
CHXII13:AMINES
324220
Treatment of ethyl amine and methyl magnesium halide produces a gaseous substance \(\mathrm{X}\). \(\mathrm{X}\) is
324217
The acid used for the determination of molecular weights of amines is
1 \(\mathrm{H}_{2} \mathrm{PtCl}_{6}\)
2 Picric acid
3 \(\mathrm{HAuCl}_{4}\)
4 \(\mathrm{H}_{2} \mathrm{SO}_{4}\)
Explanation:
The acid used is \(\mathrm{H}_{2} \mathrm{PtCl}_{6}\). It is a solution of platinic chloride, \(\mathrm{PtCl}_{4}\) in con. \(\mathrm{HCl}\) \({\rm{2R - N}}{{\rm{H}}_{\rm{2}}}{\rm{ + }}{{\rm{H}}_{\rm{2}}}\left[ {{\rm{PtC}}{{\rm{l}}_{\rm{6}}}} \right] \to \mathop {{{\left[ {{\rm{R}}\,\,\,\,{\rm{N}}{{\rm{H}}_{\rm{3}}}} \right]}_{\rm{2}}}^{\rm{ + }}{{\left[ {{\rm{PtC}}{{\rm{l}}_{\rm{6}}}} \right]}^{{\rm{ - 2}}}}}\limits_{{\rm{alkyl amine platinichloride}}} \) Chloroplatinates on ignition leave a residue of metallic Pt. This reaction is employed in determining molecular weight of amines.
CHXII13:AMINES
324218
In which of the following reactions does the amine behaves as an acid?
\(\mathrm{n}-\mathrm{C}_{4} \mathrm{H}_{9} \mathrm{Li}\) (organometallic substance) behaves as Bronsted base so that amine behaves as an acid.
CHXII13:AMINES
324219
When aqueous solution of \(\mathrm{CH}_{3} \mathrm{NH}_{2}\) is treated with aqueous solution of a metal ion, reddish brown precipitate is formed. The metal ion is
1 \(\mathrm{Al}^{3+}\)
2 \(\mathrm{Cr}^{3+}\)
3 \(\mathrm{Fe}^{3+}\)
4 \(\mathrm{Fe}^{2+}\)
Explanation:
Ferric salts gives reddish brown precipitate because of formation of hydroxide. \(\mathrm{FeCl}_{3}+3 \mathrm{CH}_{3} \mathrm{~N}^{+} \mathrm{H}_{3} \mathrm{OH}^{-} \rightarrow \mathrm{Fe}(\mathrm{OH})_{3}+\) \(3 \mathrm{CH}_{3} \mathrm{~N}^{+} \mathrm{H}_{3} \mathrm{Cl}^{-}\)
CHXII13:AMINES
324220
Treatment of ethyl amine and methyl magnesium halide produces a gaseous substance \(\mathrm{X}\). \(\mathrm{X}\) is
