Hardness of Water
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CHXI09:HYDROGEN

315550 In permutit method, \(\mathrm{\mathrm{Ca}^{2+}}\) is exchanged with

1 \(\mathrm{H^{+}}\)ions
2 \(\mathrm{\mathrm{Na}^{+}}\)ions
3 \(\mathrm{\mathrm{SO}_{4}^{2-}}\) ions
4 \(\mathrm{\mathrm{OH}^{-}}\)ions
CHXI09:HYDROGEN

315551 Permanent hardness in water cannot be cured by:

1 Treatment with washing soda
2 Boiling
3 Calgon's method
4 Ion exchange method
JEE - 2015
CHXI09:HYDROGEN

315552 Statement A :
Calgon is used for removing permanent hardness of water.
Statement B :
Calgon forms precipitates with \(\mathrm{\mathrm{Ca}^{2+}}\) and \(\mathrm{\mathrm{Mg}^{2+}}\)

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
CHXI09:HYDROGEN

315553 When zeolite is treated with hard water, the sodium ions are exchanged with

1 \(\mathrm{H}^{+}\)ions
2 \(\mathrm{H}^{+}\)and \(\mathrm{Ca}^{2+}\) ions
3 \(\mathrm{OH}^{-}\)and \(\mathrm{Mg}^{2+}\) ions
4 \(\mathrm{Ca}^{2+}\) and \(\mathrm{Mg}^{2+}\) ions
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CHXI09:HYDROGEN

315550 In permutit method, \(\mathrm{\mathrm{Ca}^{2+}}\) is exchanged with

1 \(\mathrm{H^{+}}\)ions
2 \(\mathrm{\mathrm{Na}^{+}}\)ions
3 \(\mathrm{\mathrm{SO}_{4}^{2-}}\) ions
4 \(\mathrm{\mathrm{OH}^{-}}\)ions
CHXI09:HYDROGEN

315551 Permanent hardness in water cannot be cured by:

1 Treatment with washing soda
2 Boiling
3 Calgon's method
4 Ion exchange method
JEE - 2015
CHXI09:HYDROGEN

315552 Statement A :
Calgon is used for removing permanent hardness of water.
Statement B :
Calgon forms precipitates with \(\mathrm{\mathrm{Ca}^{2+}}\) and \(\mathrm{\mathrm{Mg}^{2+}}\)

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
CHXI09:HYDROGEN

315553 When zeolite is treated with hard water, the sodium ions are exchanged with

1 \(\mathrm{H}^{+}\)ions
2 \(\mathrm{H}^{+}\)and \(\mathrm{Ca}^{2+}\) ions
3 \(\mathrm{OH}^{-}\)and \(\mathrm{Mg}^{2+}\) ions
4 \(\mathrm{Ca}^{2+}\) and \(\mathrm{Mg}^{2+}\) ions
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CHXI09:HYDROGEN

315550 In permutit method, \(\mathrm{\mathrm{Ca}^{2+}}\) is exchanged with

1 \(\mathrm{H^{+}}\)ions
2 \(\mathrm{\mathrm{Na}^{+}}\)ions
3 \(\mathrm{\mathrm{SO}_{4}^{2-}}\) ions
4 \(\mathrm{\mathrm{OH}^{-}}\)ions
CHXI09:HYDROGEN

315551 Permanent hardness in water cannot be cured by:

1 Treatment with washing soda
2 Boiling
3 Calgon's method
4 Ion exchange method
JEE - 2015
CHXI09:HYDROGEN

315552 Statement A :
Calgon is used for removing permanent hardness of water.
Statement B :
Calgon forms precipitates with \(\mathrm{\mathrm{Ca}^{2+}}\) and \(\mathrm{\mathrm{Mg}^{2+}}\)

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
CHXI09:HYDROGEN

315553 When zeolite is treated with hard water, the sodium ions are exchanged with

1 \(\mathrm{H}^{+}\)ions
2 \(\mathrm{H}^{+}\)and \(\mathrm{Ca}^{2+}\) ions
3 \(\mathrm{OH}^{-}\)and \(\mathrm{Mg}^{2+}\) ions
4 \(\mathrm{Ca}^{2+}\) and \(\mathrm{Mg}^{2+}\) ions
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CHXI09:HYDROGEN

315550 In permutit method, \(\mathrm{\mathrm{Ca}^{2+}}\) is exchanged with

1 \(\mathrm{H^{+}}\)ions
2 \(\mathrm{\mathrm{Na}^{+}}\)ions
3 \(\mathrm{\mathrm{SO}_{4}^{2-}}\) ions
4 \(\mathrm{\mathrm{OH}^{-}}\)ions
CHXI09:HYDROGEN

315551 Permanent hardness in water cannot be cured by:

1 Treatment with washing soda
2 Boiling
3 Calgon's method
4 Ion exchange method
JEE - 2015
CHXI09:HYDROGEN

315552 Statement A :
Calgon is used for removing permanent hardness of water.
Statement B :
Calgon forms precipitates with \(\mathrm{\mathrm{Ca}^{2+}}\) and \(\mathrm{\mathrm{Mg}^{2+}}\)

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
CHXI09:HYDROGEN

315553 When zeolite is treated with hard water, the sodium ions are exchanged with

1 \(\mathrm{H}^{+}\)ions
2 \(\mathrm{H}^{+}\)and \(\mathrm{Ca}^{2+}\) ions
3 \(\mathrm{OH}^{-}\)and \(\mathrm{Mg}^{2+}\) ions
4 \(\mathrm{Ca}^{2+}\) and \(\mathrm{Mg}^{2+}\) ions
For More Updates join with Us