The metal salts formed during softening of hardwater using Clark's method are :

Question

The metal salts formed during softening of hardwater using Clark's method are : (A) Ca ( OH )2 and Mg ( OH )2 (B) CaCO 3 and Mg ( OH )2 (C) Ca ( OH )2 and MgCO 3 (D) CaCO 3 and MgCO 3

Tardigrade Admin · Accepted Answer

Clark's Method Reaction Ca ( HCO 3)2+ Ca ( OH )2 arrow 2 CaCO 3+2 H 2 O Mg ( HCO 3)2+2 Ca ( OH )2 arrow 2 CaCO 3+ Mg ( OH )2+2 H 2 O

Q. The metal salts formed during softening of hardwater using Clark's method are :

$C a (O H)_{2}$ and $M g (O H)_{2}$

$C a C O_{3}$ and $M g (O H)_{2}$

$C a (O H)_{2}$ and $M g C O_{3}$

$C a C O_{3}$ and $M g C O_{3}$

Clark's Method Reaction
$C a (H C O_{3})_{2} + C a (O H)_{2} \to 2 C a C O_{3} + 2 H_{2} O$
$M g (H C O_{3})_{2} + 2 C a (O H)_{2} \to 2 C a C O_{3} + M g (O H)_{2} + 2 H_{2} O$

Q. The metal salts formed during softening of hardwater using Clark's method are :

Ca(OH)2​ and Mg(OH)2​

CaCO3​ and Mg(OH)2​

Ca(OH)2​ and MgCO3​

CaCO3​ and MgCO3​

Clark's Method Reaction Ca(HCO3​)2​+Ca(OH)2​→2CaCO3​+2H2​O Mg(HCO3​)2​+2Ca(OH)2​→2CaCO3​+Mg(OH)2​+2H2​O

$C a (O H)_{2}$ and $M g (O H)_{2}$

$C a C O_{3}$ and $M g (O H)_{2}$

$C a (O H)_{2}$ and $M g C O_{3}$

$C a C O_{3}$ and $M g C O_{3}$

Clark's Method Reaction
$C a (H C O_{3})_{2} + C a (O H)_{2} \to 2 C a C O_{3} + 2 H_{2} O$
$M g (H C O_{3})_{2} + 2 C a (O H)_{2} \to 2 C a C O_{3} + M g (O H)_{2} + 2 H_{2} O$