PRACTICAL CHEMISTRY
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PRACTICAL CHEMISTRY

37585 The number of white coloured salts among the following is .................\((A)\) \(\mathrm{SrSO}_4\)\((B)\) \(\mathrm{Mg}\left(\mathrm{NH}_4\right) \mathrm{PO}_4\)\((c)\) \(\mathrm{BaCrO}_4\)\((D)\) \(\mathrm{Mn}(\mathrm{OH})_2\)\((E)\) \(\mathrm{PbSO}_4\)\((F)\) \(\mathrm{PbCrO}_4\)\((G)\) \(\mathrm{AgBr}\)\((H)\) \(\mathrm{PbI}_2\)\((I)\) \(\mathrm{CaC}_2 \mathrm{O}_4\)\((J)\) \(\left[\mathrm{Fe}(\mathrm{OH})_2\left(\mathrm{CH}_3 \mathrm{COO}\right)\right]\)

1 \(2\)
2 \(3\)
3 \(4\)
4 \(5\)
PRACTICAL CHEMISTRY

37586 Given below are two statements:Statement \((I)\) : Dimethyl glyoxime forms a sixmembered covalent chelate when treated with \(\mathrm{NiCl}_2\) solution in presence of \(\mathrm{NH}_4 \mathrm{OH}\).Statement \((II)\) : Prussian blue precipitate contains iron both in \((+2)\) and \((+3)\) oxidation states. In the light of the above statements, choose the most appropriate answer from the options given below:

1 Statement \(I\) is false but Statement \(II\) is true
2 Both Statement \(I\) and Statement \(II\) are true
3 Both Statement \(I\) and Statement \(II\) are false
4 Statement \(I\) is true but Statement \(II\) is false
PRACTICAL CHEMISTRY

37424 Phenolphthalein is not a good indicator for titrating

1 \(NaOH\) against oxalic acid
2 Ferrous sulphate against \(KMn{O_4}\)
3 \(NaOH\) against \(HCl\)
4 \(NaOH\) against \({H_2}S{O_4}\)
PRACTICAL CHEMISTRY

37552 The correct match between items of


List-I List-II
A. Coloured impurity (p) Steam distillation
B. Mixture of o-nitrophenol and p-nitrophenol (q) Fractional distillation
C. Crude naphtha (r) Charcoal treatment
D. Mixture of glycerol and sugars (s) Distillation under reduced pressure

1 \((A)-(r), (B)-(s), (C)-(p), (D)-(q)\)
2 \((A)-(p), (B)-(s), (C)-(r), (D)-(q)\)
3 \((A)-(r), (B)-(p), (C)-(q), (D)-(s)\)
4 \((A)-(r), (B)-(p), (C)-(s), (D)-(q)\)
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PRACTICAL CHEMISTRY

37585 The number of white coloured salts among the following is .................\((A)\) \(\mathrm{SrSO}_4\)\((B)\) \(\mathrm{Mg}\left(\mathrm{NH}_4\right) \mathrm{PO}_4\)\((c)\) \(\mathrm{BaCrO}_4\)\((D)\) \(\mathrm{Mn}(\mathrm{OH})_2\)\((E)\) \(\mathrm{PbSO}_4\)\((F)\) \(\mathrm{PbCrO}_4\)\((G)\) \(\mathrm{AgBr}\)\((H)\) \(\mathrm{PbI}_2\)\((I)\) \(\mathrm{CaC}_2 \mathrm{O}_4\)\((J)\) \(\left[\mathrm{Fe}(\mathrm{OH})_2\left(\mathrm{CH}_3 \mathrm{COO}\right)\right]\)

1 \(2\)
2 \(3\)
3 \(4\)
4 \(5\)
PRACTICAL CHEMISTRY

37586 Given below are two statements:Statement \((I)\) : Dimethyl glyoxime forms a sixmembered covalent chelate when treated with \(\mathrm{NiCl}_2\) solution in presence of \(\mathrm{NH}_4 \mathrm{OH}\).Statement \((II)\) : Prussian blue precipitate contains iron both in \((+2)\) and \((+3)\) oxidation states. In the light of the above statements, choose the most appropriate answer from the options given below:

1 Statement \(I\) is false but Statement \(II\) is true
2 Both Statement \(I\) and Statement \(II\) are true
3 Both Statement \(I\) and Statement \(II\) are false
4 Statement \(I\) is true but Statement \(II\) is false
PRACTICAL CHEMISTRY

37424 Phenolphthalein is not a good indicator for titrating

1 \(NaOH\) against oxalic acid
2 Ferrous sulphate against \(KMn{O_4}\)
3 \(NaOH\) against \(HCl\)
4 \(NaOH\) against \({H_2}S{O_4}\)
PRACTICAL CHEMISTRY

37552 The correct match between items of


List-I List-II
A. Coloured impurity (p) Steam distillation
B. Mixture of o-nitrophenol and p-nitrophenol (q) Fractional distillation
C. Crude naphtha (r) Charcoal treatment
D. Mixture of glycerol and sugars (s) Distillation under reduced pressure

1 \((A)-(r), (B)-(s), (C)-(p), (D)-(q)\)
2 \((A)-(p), (B)-(s), (C)-(r), (D)-(q)\)
3 \((A)-(r), (B)-(p), (C)-(q), (D)-(s)\)
4 \((A)-(r), (B)-(p), (C)-(s), (D)-(q)\)
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PRACTICAL CHEMISTRY

37585 The number of white coloured salts among the following is .................\((A)\) \(\mathrm{SrSO}_4\)\((B)\) \(\mathrm{Mg}\left(\mathrm{NH}_4\right) \mathrm{PO}_4\)\((c)\) \(\mathrm{BaCrO}_4\)\((D)\) \(\mathrm{Mn}(\mathrm{OH})_2\)\((E)\) \(\mathrm{PbSO}_4\)\((F)\) \(\mathrm{PbCrO}_4\)\((G)\) \(\mathrm{AgBr}\)\((H)\) \(\mathrm{PbI}_2\)\((I)\) \(\mathrm{CaC}_2 \mathrm{O}_4\)\((J)\) \(\left[\mathrm{Fe}(\mathrm{OH})_2\left(\mathrm{CH}_3 \mathrm{COO}\right)\right]\)

1 \(2\)
2 \(3\)
3 \(4\)
4 \(5\)
PRACTICAL CHEMISTRY

37586 Given below are two statements:Statement \((I)\) : Dimethyl glyoxime forms a sixmembered covalent chelate when treated with \(\mathrm{NiCl}_2\) solution in presence of \(\mathrm{NH}_4 \mathrm{OH}\).Statement \((II)\) : Prussian blue precipitate contains iron both in \((+2)\) and \((+3)\) oxidation states. In the light of the above statements, choose the most appropriate answer from the options given below:

1 Statement \(I\) is false but Statement \(II\) is true
2 Both Statement \(I\) and Statement \(II\) are true
3 Both Statement \(I\) and Statement \(II\) are false
4 Statement \(I\) is true but Statement \(II\) is false
PRACTICAL CHEMISTRY

37424 Phenolphthalein is not a good indicator for titrating

1 \(NaOH\) against oxalic acid
2 Ferrous sulphate against \(KMn{O_4}\)
3 \(NaOH\) against \(HCl\)
4 \(NaOH\) against \({H_2}S{O_4}\)
PRACTICAL CHEMISTRY

37552 The correct match between items of


List-I List-II
A. Coloured impurity (p) Steam distillation
B. Mixture of o-nitrophenol and p-nitrophenol (q) Fractional distillation
C. Crude naphtha (r) Charcoal treatment
D. Mixture of glycerol and sugars (s) Distillation under reduced pressure

1 \((A)-(r), (B)-(s), (C)-(p), (D)-(q)\)
2 \((A)-(p), (B)-(s), (C)-(r), (D)-(q)\)
3 \((A)-(r), (B)-(p), (C)-(q), (D)-(s)\)
4 \((A)-(r), (B)-(p), (C)-(s), (D)-(q)\)
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PRACTICAL CHEMISTRY

37585 The number of white coloured salts among the following is .................\((A)\) \(\mathrm{SrSO}_4\)\((B)\) \(\mathrm{Mg}\left(\mathrm{NH}_4\right) \mathrm{PO}_4\)\((c)\) \(\mathrm{BaCrO}_4\)\((D)\) \(\mathrm{Mn}(\mathrm{OH})_2\)\((E)\) \(\mathrm{PbSO}_4\)\((F)\) \(\mathrm{PbCrO}_4\)\((G)\) \(\mathrm{AgBr}\)\((H)\) \(\mathrm{PbI}_2\)\((I)\) \(\mathrm{CaC}_2 \mathrm{O}_4\)\((J)\) \(\left[\mathrm{Fe}(\mathrm{OH})_2\left(\mathrm{CH}_3 \mathrm{COO}\right)\right]\)

1 \(2\)
2 \(3\)
3 \(4\)
4 \(5\)
PRACTICAL CHEMISTRY

37586 Given below are two statements:Statement \((I)\) : Dimethyl glyoxime forms a sixmembered covalent chelate when treated with \(\mathrm{NiCl}_2\) solution in presence of \(\mathrm{NH}_4 \mathrm{OH}\).Statement \((II)\) : Prussian blue precipitate contains iron both in \((+2)\) and \((+3)\) oxidation states. In the light of the above statements, choose the most appropriate answer from the options given below:

1 Statement \(I\) is false but Statement \(II\) is true
2 Both Statement \(I\) and Statement \(II\) are true
3 Both Statement \(I\) and Statement \(II\) are false
4 Statement \(I\) is true but Statement \(II\) is false
PRACTICAL CHEMISTRY

37424 Phenolphthalein is not a good indicator for titrating

1 \(NaOH\) against oxalic acid
2 Ferrous sulphate against \(KMn{O_4}\)
3 \(NaOH\) against \(HCl\)
4 \(NaOH\) against \({H_2}S{O_4}\)
PRACTICAL CHEMISTRY

37552 The correct match between items of


List-I List-II
A. Coloured impurity (p) Steam distillation
B. Mixture of o-nitrophenol and p-nitrophenol (q) Fractional distillation
C. Crude naphtha (r) Charcoal treatment
D. Mixture of glycerol and sugars (s) Distillation under reduced pressure

1 \((A)-(r), (B)-(s), (C)-(p), (D)-(q)\)
2 \((A)-(p), (B)-(s), (C)-(r), (D)-(q)\)
3 \((A)-(r), (B)-(p), (C)-(q), (D)-(s)\)
4 \((A)-(r), (B)-(p), (C)-(s), (D)-(q)\)
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