PRACTICAL CHEMISTRY
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PRACTICAL CHEMISTRY

37537 The best explanation for the solubility of \(MnS\) in dil. \(HCl\) is that

1 Solubility product of \(MnCl_2\) is less than that of \(MnS\)
2 Concentration of \(Mn^{2+}\) is lowered by the formation of complex ions with chloride ions
3 Concentration of sulphide ions is lowered by oxidation to free sulphur
4 Concentration of sulphide ions is lowered by formation of the weak acid \(H_2S\)
PRACTICAL CHEMISTRY

37538 What volume of a solution of hydrochloric acid containing \(73\) \(g\) of acid per litre would sufficient for the exact neutralization of sodium hydroxide obtained by allowing \(0.46\) \(g\) metallic sodium to act upon water.....\(ml\) \((Cl = 35.5, Na = 23.0, 0 = 16)\)

1 \(10\)
2 \(15 \)
3 \(20\)
4 \(8\)
PRACTICAL CHEMISTRY

37539 A white sodium salt dissolves readily in water to give a solution which is neutral to litmus. When silver nitrate solution is added to the solution, a white precipitate is formed which does not dissolve in dilute nitric acid. The anion could be

1 \(SO_4^{2 - }\)
2 \(CO_3^{2 - }\)
3 \({S^{2 - }}\)
4 \(C{l^ - }\)
PRACTICAL CHEMISTRY

37540 Sometimes yellow turbidity appears on passing \({H_2}S\) gas even in the absence of the second group radicals. This happens because

1 Sulphur is present in the mixture as an impurity
2 The fourth group radicals are precipitated as sulphides
3 The \({H_2}S\) is oxidized by some acid radicals
4 The third group radicals are precipitated
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PRACTICAL CHEMISTRY

37537 The best explanation for the solubility of \(MnS\) in dil. \(HCl\) is that

1 Solubility product of \(MnCl_2\) is less than that of \(MnS\)
2 Concentration of \(Mn^{2+}\) is lowered by the formation of complex ions with chloride ions
3 Concentration of sulphide ions is lowered by oxidation to free sulphur
4 Concentration of sulphide ions is lowered by formation of the weak acid \(H_2S\)
PRACTICAL CHEMISTRY

37538 What volume of a solution of hydrochloric acid containing \(73\) \(g\) of acid per litre would sufficient for the exact neutralization of sodium hydroxide obtained by allowing \(0.46\) \(g\) metallic sodium to act upon water.....\(ml\) \((Cl = 35.5, Na = 23.0, 0 = 16)\)

1 \(10\)
2 \(15 \)
3 \(20\)
4 \(8\)
PRACTICAL CHEMISTRY

37539 A white sodium salt dissolves readily in water to give a solution which is neutral to litmus. When silver nitrate solution is added to the solution, a white precipitate is formed which does not dissolve in dilute nitric acid. The anion could be

1 \(SO_4^{2 - }\)
2 \(CO_3^{2 - }\)
3 \({S^{2 - }}\)
4 \(C{l^ - }\)
PRACTICAL CHEMISTRY

37540 Sometimes yellow turbidity appears on passing \({H_2}S\) gas even in the absence of the second group radicals. This happens because

1 Sulphur is present in the mixture as an impurity
2 The fourth group radicals are precipitated as sulphides
3 The \({H_2}S\) is oxidized by some acid radicals
4 The third group radicals are precipitated
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PRACTICAL CHEMISTRY

37537 The best explanation for the solubility of \(MnS\) in dil. \(HCl\) is that

1 Solubility product of \(MnCl_2\) is less than that of \(MnS\)
2 Concentration of \(Mn^{2+}\) is lowered by the formation of complex ions with chloride ions
3 Concentration of sulphide ions is lowered by oxidation to free sulphur
4 Concentration of sulphide ions is lowered by formation of the weak acid \(H_2S\)
PRACTICAL CHEMISTRY

37538 What volume of a solution of hydrochloric acid containing \(73\) \(g\) of acid per litre would sufficient for the exact neutralization of sodium hydroxide obtained by allowing \(0.46\) \(g\) metallic sodium to act upon water.....\(ml\) \((Cl = 35.5, Na = 23.0, 0 = 16)\)

1 \(10\)
2 \(15 \)
3 \(20\)
4 \(8\)
PRACTICAL CHEMISTRY

37539 A white sodium salt dissolves readily in water to give a solution which is neutral to litmus. When silver nitrate solution is added to the solution, a white precipitate is formed which does not dissolve in dilute nitric acid. The anion could be

1 \(SO_4^{2 - }\)
2 \(CO_3^{2 - }\)
3 \({S^{2 - }}\)
4 \(C{l^ - }\)
PRACTICAL CHEMISTRY

37540 Sometimes yellow turbidity appears on passing \({H_2}S\) gas even in the absence of the second group radicals. This happens because

1 Sulphur is present in the mixture as an impurity
2 The fourth group radicals are precipitated as sulphides
3 The \({H_2}S\) is oxidized by some acid radicals
4 The third group radicals are precipitated
For More Updates join with Us
PRACTICAL CHEMISTRY

37537 The best explanation for the solubility of \(MnS\) in dil. \(HCl\) is that

1 Solubility product of \(MnCl_2\) is less than that of \(MnS\)
2 Concentration of \(Mn^{2+}\) is lowered by the formation of complex ions with chloride ions
3 Concentration of sulphide ions is lowered by oxidation to free sulphur
4 Concentration of sulphide ions is lowered by formation of the weak acid \(H_2S\)
PRACTICAL CHEMISTRY

37538 What volume of a solution of hydrochloric acid containing \(73\) \(g\) of acid per litre would sufficient for the exact neutralization of sodium hydroxide obtained by allowing \(0.46\) \(g\) metallic sodium to act upon water.....\(ml\) \((Cl = 35.5, Na = 23.0, 0 = 16)\)

1 \(10\)
2 \(15 \)
3 \(20\)
4 \(8\)
PRACTICAL CHEMISTRY

37539 A white sodium salt dissolves readily in water to give a solution which is neutral to litmus. When silver nitrate solution is added to the solution, a white precipitate is formed which does not dissolve in dilute nitric acid. The anion could be

1 \(SO_4^{2 - }\)
2 \(CO_3^{2 - }\)
3 \({S^{2 - }}\)
4 \(C{l^ - }\)
PRACTICAL CHEMISTRY

37540 Sometimes yellow turbidity appears on passing \({H_2}S\) gas even in the absence of the second group radicals. This happens because

1 Sulphur is present in the mixture as an impurity
2 The fourth group radicals are precipitated as sulphides
3 The \({H_2}S\) is oxidized by some acid radicals
4 The third group radicals are precipitated
NEET DIGITAL LIBRARY