Which cleansing agent gets precipitated in hard water?

Question

Which cleansing agent gets precipitated in hard water? (A) Cetyl trimethyl ammonium bromide (B) Sodium dodecyl benzene sulphonate (C) Sodium lauryl sulphate (D) Sodium stearate

Tardigrade Admin · Accepted Answer

2C17 H35COONa+CaCI2 →2 NaCI+ underset textinsoluble calcium stearate (soap)(C17H35COO)2 Ca

Q. Which cleansing agent gets precipitated in hard water?

Cetyl trimethyl ammonium bromide

Sodium dodecyl benzene sulphonate

Sodium lauryl sulphate

Sodium stearate

$2 C_{17} H_{35} COON a + C a C I_{2} \to 2 N a C I + insoluble calcium stearate (soap) (C_{17} H_{35} COO)_{2} C a$

Q. Which cleansing agent gets precipitated in hard water?

Cetyl trimethyl ammonium bromide

Sodium dodecyl benzene sulphonate

Sodium lauryl sulphate

Sodium stearate

2C17​H35​COONa+CaCI2​→2NaCI+insoluble calcium stearate (soap)(C17​H35​COO)2​Ca​

$2 C_{17} H_{35} COON a + C a C I_{2} \to 2 N a C I + insoluble calcium stearate (soap) (C_{17} H_{35} COO)_{2} C a$