Water Pollution
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CHXI14:ENVIRONMENTAL CHEMISTRY

318617 The species responsible for chlorosis and fluorosis are respectively

1 \(\mathrm{Cl}^{-}, \mathrm{F}^{-}\)
2 \({\text{CFC, }}{{\text{F}}^{\text{ - }}}\)
3 \(\mathrm{F}^{-}, \mathrm{SO}_{2}\)
4 \({\text{S}}{{\text{O}}_{\text{2}}}{\text{, }}{{\text{F}}^{\text{ - }}}\)
CHXI14:ENVIRONMENTAL CHEMISTRY

318618 Among the following statements, the correct one pertaining to pollutants is

1 DDT is non-biodegradable pollutant
2 Excess fluoride in drinking water causes ostoporosis
3 Excess cadmium in drinking water causes black foot disease
4 Methyl mercury in water may causes "Itai- ltai disease"
CHXI14:ENVIRONMENTAL CHEMISTRY

318619 \(\mathrm{A}, \mathrm{B}, \mathrm{C}\) and \(\mathrm{D}\) are four \(100-\mathrm{mL}\) samples of water. Fluoride ion concentrations in these samples are 2, 5, 8 and \({\text{12}}\,\,{\text{ppm}}\) respectively. One drop of alizarine - \(\mathrm{S}\) dye is added to each of these samples. The order of intensity of pink colour in these water samples - is

1 A \(>\) B \(>\) C \(>\) D
2 D \(>\) C \(>\) B \(>\) A
3 A \( < \) B \(=\) C \( < \) D
4 \(\mathrm{A}=\mathrm{B}=\mathrm{C}=\mathrm{D}\)
CHXI14:ENVIRONMENTAL CHEMISTRY

318620 Formula of enamel on teeth is

1 \(3\,\,{\text{C}}{{\text{a}}_3}{\left( {{\text{P}}{{\text{O}}_4}} \right)_2} \cdot {\text{Ca}}{({\text{OH}})_2}\)
2 \(3\,\,{\text{C}}{{\text{a}}_3}{\left( {{\text{P}}{{\text{O}}_4}} \right)_2} \cdot {\text{Ca}}{{\text{F}}_2}\)
3 \(\mathrm{Ca}_{3}\left(\mathrm{PO}_{4}\right)_{2}\)
4 \(\mathrm{CaF}_{2}\)
CHXI14:ENVIRONMENTAL CHEMISTRY

318621 The ion exchange resin defluoron -2 is used to eliminate

1 \(\mathrm{Ca}^{2+}\)
2 \({{\text{F}}^{\text{ - }}}\)
3 Organic matter
4 all the three
Join With Us for More Updates
CHXI14:ENVIRONMENTAL CHEMISTRY

318617 The species responsible for chlorosis and fluorosis are respectively

1 \(\mathrm{Cl}^{-}, \mathrm{F}^{-}\)
2 \({\text{CFC, }}{{\text{F}}^{\text{ - }}}\)
3 \(\mathrm{F}^{-}, \mathrm{SO}_{2}\)
4 \({\text{S}}{{\text{O}}_{\text{2}}}{\text{, }}{{\text{F}}^{\text{ - }}}\)
CHXI14:ENVIRONMENTAL CHEMISTRY

318618 Among the following statements, the correct one pertaining to pollutants is

1 DDT is non-biodegradable pollutant
2 Excess fluoride in drinking water causes ostoporosis
3 Excess cadmium in drinking water causes black foot disease
4 Methyl mercury in water may causes "Itai- ltai disease"
CHXI14:ENVIRONMENTAL CHEMISTRY

318619 \(\mathrm{A}, \mathrm{B}, \mathrm{C}\) and \(\mathrm{D}\) are four \(100-\mathrm{mL}\) samples of water. Fluoride ion concentrations in these samples are 2, 5, 8 and \({\text{12}}\,\,{\text{ppm}}\) respectively. One drop of alizarine - \(\mathrm{S}\) dye is added to each of these samples. The order of intensity of pink colour in these water samples - is

1 A \(>\) B \(>\) C \(>\) D
2 D \(>\) C \(>\) B \(>\) A
3 A \( < \) B \(=\) C \( < \) D
4 \(\mathrm{A}=\mathrm{B}=\mathrm{C}=\mathrm{D}\)
CHXI14:ENVIRONMENTAL CHEMISTRY

318620 Formula of enamel on teeth is

1 \(3\,\,{\text{C}}{{\text{a}}_3}{\left( {{\text{P}}{{\text{O}}_4}} \right)_2} \cdot {\text{Ca}}{({\text{OH}})_2}\)
2 \(3\,\,{\text{C}}{{\text{a}}_3}{\left( {{\text{P}}{{\text{O}}_4}} \right)_2} \cdot {\text{Ca}}{{\text{F}}_2}\)
3 \(\mathrm{Ca}_{3}\left(\mathrm{PO}_{4}\right)_{2}\)
4 \(\mathrm{CaF}_{2}\)
CHXI14:ENVIRONMENTAL CHEMISTRY

318621 The ion exchange resin defluoron -2 is used to eliminate

1 \(\mathrm{Ca}^{2+}\)
2 \({{\text{F}}^{\text{ - }}}\)
3 Organic matter
4 all the three
For More Updates join with Us
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CHXI14:ENVIRONMENTAL CHEMISTRY

318617 The species responsible for chlorosis and fluorosis are respectively

1 \(\mathrm{Cl}^{-}, \mathrm{F}^{-}\)
2 \({\text{CFC, }}{{\text{F}}^{\text{ - }}}\)
3 \(\mathrm{F}^{-}, \mathrm{SO}_{2}\)
4 \({\text{S}}{{\text{O}}_{\text{2}}}{\text{, }}{{\text{F}}^{\text{ - }}}\)
CHXI14:ENVIRONMENTAL CHEMISTRY

318618 Among the following statements, the correct one pertaining to pollutants is

1 DDT is non-biodegradable pollutant
2 Excess fluoride in drinking water causes ostoporosis
3 Excess cadmium in drinking water causes black foot disease
4 Methyl mercury in water may causes "Itai- ltai disease"
CHXI14:ENVIRONMENTAL CHEMISTRY

318619 \(\mathrm{A}, \mathrm{B}, \mathrm{C}\) and \(\mathrm{D}\) are four \(100-\mathrm{mL}\) samples of water. Fluoride ion concentrations in these samples are 2, 5, 8 and \({\text{12}}\,\,{\text{ppm}}\) respectively. One drop of alizarine - \(\mathrm{S}\) dye is added to each of these samples. The order of intensity of pink colour in these water samples - is

1 A \(>\) B \(>\) C \(>\) D
2 D \(>\) C \(>\) B \(>\) A
3 A \( < \) B \(=\) C \( < \) D
4 \(\mathrm{A}=\mathrm{B}=\mathrm{C}=\mathrm{D}\)
CHXI14:ENVIRONMENTAL CHEMISTRY

318620 Formula of enamel on teeth is

1 \(3\,\,{\text{C}}{{\text{a}}_3}{\left( {{\text{P}}{{\text{O}}_4}} \right)_2} \cdot {\text{Ca}}{({\text{OH}})_2}\)
2 \(3\,\,{\text{C}}{{\text{a}}_3}{\left( {{\text{P}}{{\text{O}}_4}} \right)_2} \cdot {\text{Ca}}{{\text{F}}_2}\)
3 \(\mathrm{Ca}_{3}\left(\mathrm{PO}_{4}\right)_{2}\)
4 \(\mathrm{CaF}_{2}\)
CHXI14:ENVIRONMENTAL CHEMISTRY

318621 The ion exchange resin defluoron -2 is used to eliminate

1 \(\mathrm{Ca}^{2+}\)
2 \({{\text{F}}^{\text{ - }}}\)
3 Organic matter
4 all the three
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CHXI14:ENVIRONMENTAL CHEMISTRY

318617 The species responsible for chlorosis and fluorosis are respectively

1 \(\mathrm{Cl}^{-}, \mathrm{F}^{-}\)
2 \({\text{CFC, }}{{\text{F}}^{\text{ - }}}\)
3 \(\mathrm{F}^{-}, \mathrm{SO}_{2}\)
4 \({\text{S}}{{\text{O}}_{\text{2}}}{\text{, }}{{\text{F}}^{\text{ - }}}\)
CHXI14:ENVIRONMENTAL CHEMISTRY

318618 Among the following statements, the correct one pertaining to pollutants is

1 DDT is non-biodegradable pollutant
2 Excess fluoride in drinking water causes ostoporosis
3 Excess cadmium in drinking water causes black foot disease
4 Methyl mercury in water may causes "Itai- ltai disease"
CHXI14:ENVIRONMENTAL CHEMISTRY

318619 \(\mathrm{A}, \mathrm{B}, \mathrm{C}\) and \(\mathrm{D}\) are four \(100-\mathrm{mL}\) samples of water. Fluoride ion concentrations in these samples are 2, 5, 8 and \({\text{12}}\,\,{\text{ppm}}\) respectively. One drop of alizarine - \(\mathrm{S}\) dye is added to each of these samples. The order of intensity of pink colour in these water samples - is

1 A \(>\) B \(>\) C \(>\) D
2 D \(>\) C \(>\) B \(>\) A
3 A \( < \) B \(=\) C \( < \) D
4 \(\mathrm{A}=\mathrm{B}=\mathrm{C}=\mathrm{D}\)
CHXI14:ENVIRONMENTAL CHEMISTRY

318620 Formula of enamel on teeth is

1 \(3\,\,{\text{C}}{{\text{a}}_3}{\left( {{\text{P}}{{\text{O}}_4}} \right)_2} \cdot {\text{Ca}}{({\text{OH}})_2}\)
2 \(3\,\,{\text{C}}{{\text{a}}_3}{\left( {{\text{P}}{{\text{O}}_4}} \right)_2} \cdot {\text{Ca}}{{\text{F}}_2}\)
3 \(\mathrm{Ca}_{3}\left(\mathrm{PO}_{4}\right)_{2}\)
4 \(\mathrm{CaF}_{2}\)
CHXI14:ENVIRONMENTAL CHEMISTRY

318621 The ion exchange resin defluoron -2 is used to eliminate

1 \(\mathrm{Ca}^{2+}\)
2 \({{\text{F}}^{\text{ - }}}\)
3 Organic matter
4 all the three
Join With Us for More Updates
CHXI14:ENVIRONMENTAL CHEMISTRY

318617 The species responsible for chlorosis and fluorosis are respectively

1 \(\mathrm{Cl}^{-}, \mathrm{F}^{-}\)
2 \({\text{CFC, }}{{\text{F}}^{\text{ - }}}\)
3 \(\mathrm{F}^{-}, \mathrm{SO}_{2}\)
4 \({\text{S}}{{\text{O}}_{\text{2}}}{\text{, }}{{\text{F}}^{\text{ - }}}\)
CHXI14:ENVIRONMENTAL CHEMISTRY

318618 Among the following statements, the correct one pertaining to pollutants is

1 DDT is non-biodegradable pollutant
2 Excess fluoride in drinking water causes ostoporosis
3 Excess cadmium in drinking water causes black foot disease
4 Methyl mercury in water may causes "Itai- ltai disease"
CHXI14:ENVIRONMENTAL CHEMISTRY

318619 \(\mathrm{A}, \mathrm{B}, \mathrm{C}\) and \(\mathrm{D}\) are four \(100-\mathrm{mL}\) samples of water. Fluoride ion concentrations in these samples are 2, 5, 8 and \({\text{12}}\,\,{\text{ppm}}\) respectively. One drop of alizarine - \(\mathrm{S}\) dye is added to each of these samples. The order of intensity of pink colour in these water samples - is

1 A \(>\) B \(>\) C \(>\) D
2 D \(>\) C \(>\) B \(>\) A
3 A \( < \) B \(=\) C \( < \) D
4 \(\mathrm{A}=\mathrm{B}=\mathrm{C}=\mathrm{D}\)
CHXI14:ENVIRONMENTAL CHEMISTRY

318620 Formula of enamel on teeth is

1 \(3\,\,{\text{C}}{{\text{a}}_3}{\left( {{\text{P}}{{\text{O}}_4}} \right)_2} \cdot {\text{Ca}}{({\text{OH}})_2}\)
2 \(3\,\,{\text{C}}{{\text{a}}_3}{\left( {{\text{P}}{{\text{O}}_4}} \right)_2} \cdot {\text{Ca}}{{\text{F}}_2}\)
3 \(\mathrm{Ca}_{3}\left(\mathrm{PO}_{4}\right)_{2}\)
4 \(\mathrm{CaF}_{2}\)
CHXI14:ENVIRONMENTAL CHEMISTRY

318621 The ion exchange resin defluoron -2 is used to eliminate

1 \(\mathrm{Ca}^{2+}\)
2 \({{\text{F}}^{\text{ - }}}\)
3 Organic matter
4 all the three