315543
Permanent hardness of water can be removed by adding calgon \(\mathrm{\left(\mathrm{NaPO}_{3}\right)_{n}}\). This is an example of
1 Adsorption
2 Exchange of ion
3 precipitation
4 None of these
Explanation:
\(\mathrm{\left(\mathrm{NaPO}_{3}\right)_{n}}\) is used in calgon process, it form soluble complex with \(\mathrm{\mathrm{Ca}^{2+}}\) and \(\mathrm{\mathrm{Mg}^{2+}}\) ions.
CHXI09:HYDROGEN
315544
Hard water becomes free from ____ ions when passed through ion exchange resin containing \(\mathrm{\mathrm{RCOOH}}\) groups.
1 \(\mathrm{\mathrm{Cl}^{-}}\)
2 \(\mathrm{\mathrm{SO}_{4}^{2-}}\)
3 \(\mathrm{\mathrm{H}_{3} \mathrm{O}^{+}}\)
4 \(\mathrm{\mathrm{Ca}^{2+}}\)
Explanation:
Conceptual Questions
CHXI09:HYDROGEN
315545
The exhausted permutit is generally regenerated by passing through it a solution of
1 sodium chloride
2 calcium chloride
3 magnesium chloride
4 potassium chloride
Explanation:
The whole permutit gets exhausted due to conversion of sodium zeolite into calcium and magnesium zeolite. It can be regenerated by passing \(\mathrm{10 \%}\) solution of \(\mathrm{\mathrm{NaCl}}\) through it. \({\rm{MgZ + 2NaCl}} \to {\rm{N}}{{\rm{a}}_{\rm{2}}}{\rm{Z + MgC}}{{\rm{l}}_{\rm{2}}}\) \({\text{CaZ + }}\mathop {{\text{2NaCl}} \to {\text{N}}{{\text{a}}_{\text{2}}}{\text{Z}}}\limits_{{\text{(Exhausted Regenerated Permutit)}}} {\text{ + }}\mathop {{\text{2NaCl}}}\limits_{} \)
315543
Permanent hardness of water can be removed by adding calgon \(\mathrm{\left(\mathrm{NaPO}_{3}\right)_{n}}\). This is an example of
1 Adsorption
2 Exchange of ion
3 precipitation
4 None of these
Explanation:
\(\mathrm{\left(\mathrm{NaPO}_{3}\right)_{n}}\) is used in calgon process, it form soluble complex with \(\mathrm{\mathrm{Ca}^{2+}}\) and \(\mathrm{\mathrm{Mg}^{2+}}\) ions.
CHXI09:HYDROGEN
315544
Hard water becomes free from ____ ions when passed through ion exchange resin containing \(\mathrm{\mathrm{RCOOH}}\) groups.
1 \(\mathrm{\mathrm{Cl}^{-}}\)
2 \(\mathrm{\mathrm{SO}_{4}^{2-}}\)
3 \(\mathrm{\mathrm{H}_{3} \mathrm{O}^{+}}\)
4 \(\mathrm{\mathrm{Ca}^{2+}}\)
Explanation:
Conceptual Questions
CHXI09:HYDROGEN
315545
The exhausted permutit is generally regenerated by passing through it a solution of
1 sodium chloride
2 calcium chloride
3 magnesium chloride
4 potassium chloride
Explanation:
The whole permutit gets exhausted due to conversion of sodium zeolite into calcium and magnesium zeolite. It can be regenerated by passing \(\mathrm{10 \%}\) solution of \(\mathrm{\mathrm{NaCl}}\) through it. \({\rm{MgZ + 2NaCl}} \to {\rm{N}}{{\rm{a}}_{\rm{2}}}{\rm{Z + MgC}}{{\rm{l}}_{\rm{2}}}\) \({\text{CaZ + }}\mathop {{\text{2NaCl}} \to {\text{N}}{{\text{a}}_{\text{2}}}{\text{Z}}}\limits_{{\text{(Exhausted Regenerated Permutit)}}} {\text{ + }}\mathop {{\text{2NaCl}}}\limits_{} \)
315543
Permanent hardness of water can be removed by adding calgon \(\mathrm{\left(\mathrm{NaPO}_{3}\right)_{n}}\). This is an example of
1 Adsorption
2 Exchange of ion
3 precipitation
4 None of these
Explanation:
\(\mathrm{\left(\mathrm{NaPO}_{3}\right)_{n}}\) is used in calgon process, it form soluble complex with \(\mathrm{\mathrm{Ca}^{2+}}\) and \(\mathrm{\mathrm{Mg}^{2+}}\) ions.
CHXI09:HYDROGEN
315544
Hard water becomes free from ____ ions when passed through ion exchange resin containing \(\mathrm{\mathrm{RCOOH}}\) groups.
1 \(\mathrm{\mathrm{Cl}^{-}}\)
2 \(\mathrm{\mathrm{SO}_{4}^{2-}}\)
3 \(\mathrm{\mathrm{H}_{3} \mathrm{O}^{+}}\)
4 \(\mathrm{\mathrm{Ca}^{2+}}\)
Explanation:
Conceptual Questions
CHXI09:HYDROGEN
315545
The exhausted permutit is generally regenerated by passing through it a solution of
1 sodium chloride
2 calcium chloride
3 magnesium chloride
4 potassium chloride
Explanation:
The whole permutit gets exhausted due to conversion of sodium zeolite into calcium and magnesium zeolite. It can be regenerated by passing \(\mathrm{10 \%}\) solution of \(\mathrm{\mathrm{NaCl}}\) through it. \({\rm{MgZ + 2NaCl}} \to {\rm{N}}{{\rm{a}}_{\rm{2}}}{\rm{Z + MgC}}{{\rm{l}}_{\rm{2}}}\) \({\text{CaZ + }}\mathop {{\text{2NaCl}} \to {\text{N}}{{\text{a}}_{\text{2}}}{\text{Z}}}\limits_{{\text{(Exhausted Regenerated Permutit)}}} {\text{ + }}\mathop {{\text{2NaCl}}}\limits_{} \)
315543
Permanent hardness of water can be removed by adding calgon \(\mathrm{\left(\mathrm{NaPO}_{3}\right)_{n}}\). This is an example of
1 Adsorption
2 Exchange of ion
3 precipitation
4 None of these
Explanation:
\(\mathrm{\left(\mathrm{NaPO}_{3}\right)_{n}}\) is used in calgon process, it form soluble complex with \(\mathrm{\mathrm{Ca}^{2+}}\) and \(\mathrm{\mathrm{Mg}^{2+}}\) ions.
CHXI09:HYDROGEN
315544
Hard water becomes free from ____ ions when passed through ion exchange resin containing \(\mathrm{\mathrm{RCOOH}}\) groups.
1 \(\mathrm{\mathrm{Cl}^{-}}\)
2 \(\mathrm{\mathrm{SO}_{4}^{2-}}\)
3 \(\mathrm{\mathrm{H}_{3} \mathrm{O}^{+}}\)
4 \(\mathrm{\mathrm{Ca}^{2+}}\)
Explanation:
Conceptual Questions
CHXI09:HYDROGEN
315545
The exhausted permutit is generally regenerated by passing through it a solution of
1 sodium chloride
2 calcium chloride
3 magnesium chloride
4 potassium chloride
Explanation:
The whole permutit gets exhausted due to conversion of sodium zeolite into calcium and magnesium zeolite. It can be regenerated by passing \(\mathrm{10 \%}\) solution of \(\mathrm{\mathrm{NaCl}}\) through it. \({\rm{MgZ + 2NaCl}} \to {\rm{N}}{{\rm{a}}_{\rm{2}}}{\rm{Z + MgC}}{{\rm{l}}_{\rm{2}}}\) \({\text{CaZ + }}\mathop {{\text{2NaCl}} \to {\text{N}}{{\text{a}}_{\text{2}}}{\text{Z}}}\limits_{{\text{(Exhausted Regenerated Permutit)}}} {\text{ + }}\mathop {{\text{2NaCl}}}\limits_{} \)
