Water Pollution
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CHXI14:ENVIRONMENTAL CHEMISTRY

318622 When phosphate and nitrate ions are more in the water of a lake it causes

1 Growth of bacteria
2 Growth of fishes
3 Death of algae
4 Algal bloom
CHXI14:ENVIRONMENTAL CHEMISTRY

318623 Which of the following contains more calcium

1 River water
2 Ground water
3 Sea water
4 Rain water
CHXI14:ENVIRONMENTAL CHEMISTRY

318624 Fluoride in water is removed using precipitation method by adding calculated amounts of

1 activated carbon
2 defluoron
3 lime, alum
4 lime, alum, bleaching powder
CHXI14:ENVIRONMENTAL CHEMISTRY

318625 Match the upper limit concentrations of the pollutants in drinking water given in column I with column II and mark the appropriate choice.
Column I
Column II
A
Lead
P
\(500\,\,{\text{ppm}}\)
B
Sulphate
Q
\({\text{1}}\,\,{\text{ppm}}\)
C
Nitrate
R
\({\text{50}}\,\,{\text{ppb}}\)
D
Fluoride
S
\({\text{50}}\,\,{\text{ppm}}\)

1 \({\rm{A - Q, B - R, C - P, D - S}}\)
2 \({\rm{A - R, B - P, C - S, D - Q}}\)
3 \({\rm{A - P, B - S, C - R, D - Q}}\)
4 \({\rm{A - S, B - Q, C - R, D - P}}\)
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CHXI14:ENVIRONMENTAL CHEMISTRY

318622 When phosphate and nitrate ions are more in the water of a lake it causes

1 Growth of bacteria
2 Growth of fishes
3 Death of algae
4 Algal bloom
CHXI14:ENVIRONMENTAL CHEMISTRY

318623 Which of the following contains more calcium

1 River water
2 Ground water
3 Sea water
4 Rain water
CHXI14:ENVIRONMENTAL CHEMISTRY

318624 Fluoride in water is removed using precipitation method by adding calculated amounts of

1 activated carbon
2 defluoron
3 lime, alum
4 lime, alum, bleaching powder
CHXI14:ENVIRONMENTAL CHEMISTRY

318625 Match the upper limit concentrations of the pollutants in drinking water given in column I with column II and mark the appropriate choice.
Column I
Column II
A
Lead
P
\(500\,\,{\text{ppm}}\)
B
Sulphate
Q
\({\text{1}}\,\,{\text{ppm}}\)
C
Nitrate
R
\({\text{50}}\,\,{\text{ppb}}\)
D
Fluoride
S
\({\text{50}}\,\,{\text{ppm}}\)

1 \({\rm{A - Q, B - R, C - P, D - S}}\)
2 \({\rm{A - R, B - P, C - S, D - Q}}\)
3 \({\rm{A - P, B - S, C - R, D - Q}}\)
4 \({\rm{A - S, B - Q, C - R, D - P}}\)
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CHXI14:ENVIRONMENTAL CHEMISTRY

318622 When phosphate and nitrate ions are more in the water of a lake it causes

1 Growth of bacteria
2 Growth of fishes
3 Death of algae
4 Algal bloom
CHXI14:ENVIRONMENTAL CHEMISTRY

318623 Which of the following contains more calcium

1 River water
2 Ground water
3 Sea water
4 Rain water
CHXI14:ENVIRONMENTAL CHEMISTRY

318624 Fluoride in water is removed using precipitation method by adding calculated amounts of

1 activated carbon
2 defluoron
3 lime, alum
4 lime, alum, bleaching powder
CHXI14:ENVIRONMENTAL CHEMISTRY

318625 Match the upper limit concentrations of the pollutants in drinking water given in column I with column II and mark the appropriate choice.
Column I
Column II
A
Lead
P
\(500\,\,{\text{ppm}}\)
B
Sulphate
Q
\({\text{1}}\,\,{\text{ppm}}\)
C
Nitrate
R
\({\text{50}}\,\,{\text{ppb}}\)
D
Fluoride
S
\({\text{50}}\,\,{\text{ppm}}\)

1 \({\rm{A - Q, B - R, C - P, D - S}}\)
2 \({\rm{A - R, B - P, C - S, D - Q}}\)
3 \({\rm{A - P, B - S, C - R, D - Q}}\)
4 \({\rm{A - S, B - Q, C - R, D - P}}\)
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CHXI14:ENVIRONMENTAL CHEMISTRY

318622 When phosphate and nitrate ions are more in the water of a lake it causes

1 Growth of bacteria
2 Growth of fishes
3 Death of algae
4 Algal bloom
CHXI14:ENVIRONMENTAL CHEMISTRY

318623 Which of the following contains more calcium

1 River water
2 Ground water
3 Sea water
4 Rain water
CHXI14:ENVIRONMENTAL CHEMISTRY

318624 Fluoride in water is removed using precipitation method by adding calculated amounts of

1 activated carbon
2 defluoron
3 lime, alum
4 lime, alum, bleaching powder
CHXI14:ENVIRONMENTAL CHEMISTRY

318625 Match the upper limit concentrations of the pollutants in drinking water given in column I with column II and mark the appropriate choice.
Column I
Column II
A
Lead
P
\(500\,\,{\text{ppm}}\)
B
Sulphate
Q
\({\text{1}}\,\,{\text{ppm}}\)
C
Nitrate
R
\({\text{50}}\,\,{\text{ppb}}\)
D
Fluoride
S
\({\text{50}}\,\,{\text{ppm}}\)

1 \({\rm{A - Q, B - R, C - P, D - S}}\)
2 \({\rm{A - R, B - P, C - S, D - Q}}\)
3 \({\rm{A - P, B - S, C - R, D - Q}}\)
4 \({\rm{A - S, B - Q, C - R, D - P}}\)