Hardness of Water
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CHXI09:HYDROGEN

315554 Assertion :
In clark's process excess of lime is not added to water sample to remove temporary hardness.
Reason :
Addition of excess of milk of lime causes permanent hardness

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
CHXI09:HYDROGEN

315555 How many of the following can be used to remove permanent hardness of water?
\({\mathrm{\mathrm{Na}_{2} \mathrm{CO}_{3}}}\), zeolite, \({\mathrm{\mathrm{Ca}(\mathrm{OH})_{2}}}\), Calgon.

1 4
2 2
3 3
4 1
CHXI09:HYDROGEN

315556 How many of the following results in permanent hardness of water?
\({\text{Ca}}{\left( {{\text{HC}}{{\text{O}}_{\text{3}}}} \right)_{\text{2}}}{\text{,NaCl,N}}{{\text{a}}_{\text{2}}}{\text{S}}{{\text{O}}_{\text{4}}}{\text{,CaC}}{{\text{l}}_{\text{2}}}{\text{,Mg}}{\left( {{\text{HC}}{{\text{O}}_{\text{3}}}} \right)_{\text{2}}}{\text{,}}\)
\({\text{MgS}}{{\text{O}}_{\text{4}}}{\text{.}}\)

1 6
2 5
3 1
4 4
CHXI09:HYDROGEN

315557 Temporary hardness is caused due to the presence of

1 \(\mathrm{\mathrm{CaSO}_{4}}\)
2 \(\mathrm{\mathrm{CaCl}_{2}}\)
3 \(\mathrm{\mathrm{CaCO}_{3}}\)
4 \(\mathrm{\mathrm{Ca}\left(\mathrm{HCO}_{3}\right)_{2}}\)
CHXI09:HYDROGEN

315558 Statement A :
Temporary hardness can be removed by boiling.
Statement B :
On boiling the soluble bicarbonates change to carbonates which being insoluble, get precipitated.

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.
NEET DIGITAL LIBRARY
CHXI09:HYDROGEN

315554 Assertion :
In clark's process excess of lime is not added to water sample to remove temporary hardness.
Reason :
Addition of excess of milk of lime causes permanent hardness

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
CHXI09:HYDROGEN

315555 How many of the following can be used to remove permanent hardness of water?
\({\mathrm{\mathrm{Na}_{2} \mathrm{CO}_{3}}}\), zeolite, \({\mathrm{\mathrm{Ca}(\mathrm{OH})_{2}}}\), Calgon.

1 4
2 2
3 3
4 1
CHXI09:HYDROGEN

315556 How many of the following results in permanent hardness of water?
\({\text{Ca}}{\left( {{\text{HC}}{{\text{O}}_{\text{3}}}} \right)_{\text{2}}}{\text{,NaCl,N}}{{\text{a}}_{\text{2}}}{\text{S}}{{\text{O}}_{\text{4}}}{\text{,CaC}}{{\text{l}}_{\text{2}}}{\text{,Mg}}{\left( {{\text{HC}}{{\text{O}}_{\text{3}}}} \right)_{\text{2}}}{\text{,}}\)
\({\text{MgS}}{{\text{O}}_{\text{4}}}{\text{.}}\)

1 6
2 5
3 1
4 4
CHXI09:HYDROGEN

315557 Temporary hardness is caused due to the presence of

1 \(\mathrm{\mathrm{CaSO}_{4}}\)
2 \(\mathrm{\mathrm{CaCl}_{2}}\)
3 \(\mathrm{\mathrm{CaCO}_{3}}\)
4 \(\mathrm{\mathrm{Ca}\left(\mathrm{HCO}_{3}\right)_{2}}\)
CHXI09:HYDROGEN

315558 Statement A :
Temporary hardness can be removed by boiling.
Statement B :
On boiling the soluble bicarbonates change to carbonates which being insoluble, get precipitated.

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.
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CHXI09:HYDROGEN

315554 Assertion :
In clark's process excess of lime is not added to water sample to remove temporary hardness.
Reason :
Addition of excess of milk of lime causes permanent hardness

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
CHXI09:HYDROGEN

315555 How many of the following can be used to remove permanent hardness of water?
\({\mathrm{\mathrm{Na}_{2} \mathrm{CO}_{3}}}\), zeolite, \({\mathrm{\mathrm{Ca}(\mathrm{OH})_{2}}}\), Calgon.

1 4
2 2
3 3
4 1
CHXI09:HYDROGEN

315556 How many of the following results in permanent hardness of water?
\({\text{Ca}}{\left( {{\text{HC}}{{\text{O}}_{\text{3}}}} \right)_{\text{2}}}{\text{,NaCl,N}}{{\text{a}}_{\text{2}}}{\text{S}}{{\text{O}}_{\text{4}}}{\text{,CaC}}{{\text{l}}_{\text{2}}}{\text{,Mg}}{\left( {{\text{HC}}{{\text{O}}_{\text{3}}}} \right)_{\text{2}}}{\text{,}}\)
\({\text{MgS}}{{\text{O}}_{\text{4}}}{\text{.}}\)

1 6
2 5
3 1
4 4
CHXI09:HYDROGEN

315557 Temporary hardness is caused due to the presence of

1 \(\mathrm{\mathrm{CaSO}_{4}}\)
2 \(\mathrm{\mathrm{CaCl}_{2}}\)
3 \(\mathrm{\mathrm{CaCO}_{3}}\)
4 \(\mathrm{\mathrm{Ca}\left(\mathrm{HCO}_{3}\right)_{2}}\)
CHXI09:HYDROGEN

315558 Statement A :
Temporary hardness can be removed by boiling.
Statement B :
On boiling the soluble bicarbonates change to carbonates which being insoluble, get precipitated.

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.
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CHXI09:HYDROGEN

315554 Assertion :
In clark's process excess of lime is not added to water sample to remove temporary hardness.
Reason :
Addition of excess of milk of lime causes permanent hardness

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
CHXI09:HYDROGEN

315555 How many of the following can be used to remove permanent hardness of water?
\({\mathrm{\mathrm{Na}_{2} \mathrm{CO}_{3}}}\), zeolite, \({\mathrm{\mathrm{Ca}(\mathrm{OH})_{2}}}\), Calgon.

1 4
2 2
3 3
4 1
CHXI09:HYDROGEN

315556 How many of the following results in permanent hardness of water?
\({\text{Ca}}{\left( {{\text{HC}}{{\text{O}}_{\text{3}}}} \right)_{\text{2}}}{\text{,NaCl,N}}{{\text{a}}_{\text{2}}}{\text{S}}{{\text{O}}_{\text{4}}}{\text{,CaC}}{{\text{l}}_{\text{2}}}{\text{,Mg}}{\left( {{\text{HC}}{{\text{O}}_{\text{3}}}} \right)_{\text{2}}}{\text{,}}\)
\({\text{MgS}}{{\text{O}}_{\text{4}}}{\text{.}}\)

1 6
2 5
3 1
4 4
CHXI09:HYDROGEN

315557 Temporary hardness is caused due to the presence of

1 \(\mathrm{\mathrm{CaSO}_{4}}\)
2 \(\mathrm{\mathrm{CaCl}_{2}}\)
3 \(\mathrm{\mathrm{CaCO}_{3}}\)
4 \(\mathrm{\mathrm{Ca}\left(\mathrm{HCO}_{3}\right)_{2}}\)
CHXI09:HYDROGEN

315558 Statement A :
Temporary hardness can be removed by boiling.
Statement B :
On boiling the soluble bicarbonates change to carbonates which being insoluble, get precipitated.

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.
NEET DIGITAL LIBRARY
CHXI09:HYDROGEN

315554 Assertion :
In clark's process excess of lime is not added to water sample to remove temporary hardness.
Reason :
Addition of excess of milk of lime causes permanent hardness

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
CHXI09:HYDROGEN

315555 How many of the following can be used to remove permanent hardness of water?
\({\mathrm{\mathrm{Na}_{2} \mathrm{CO}_{3}}}\), zeolite, \({\mathrm{\mathrm{Ca}(\mathrm{OH})_{2}}}\), Calgon.

1 4
2 2
3 3
4 1
CHXI09:HYDROGEN

315556 How many of the following results in permanent hardness of water?
\({\text{Ca}}{\left( {{\text{HC}}{{\text{O}}_{\text{3}}}} \right)_{\text{2}}}{\text{,NaCl,N}}{{\text{a}}_{\text{2}}}{\text{S}}{{\text{O}}_{\text{4}}}{\text{,CaC}}{{\text{l}}_{\text{2}}}{\text{,Mg}}{\left( {{\text{HC}}{{\text{O}}_{\text{3}}}} \right)_{\text{2}}}{\text{,}}\)
\({\text{MgS}}{{\text{O}}_{\text{4}}}{\text{.}}\)

1 6
2 5
3 1
4 4
CHXI09:HYDROGEN

315557 Temporary hardness is caused due to the presence of

1 \(\mathrm{\mathrm{CaSO}_{4}}\)
2 \(\mathrm{\mathrm{CaCl}_{2}}\)
3 \(\mathrm{\mathrm{CaCO}_{3}}\)
4 \(\mathrm{\mathrm{Ca}\left(\mathrm{HCO}_{3}\right)_{2}}\)
CHXI09:HYDROGEN

315558 Statement A :
Temporary hardness can be removed by boiling.
Statement B :
On boiling the soluble bicarbonates change to carbonates which being insoluble, get precipitated.

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.