KCET2019ChemistryChemistry in Everyday Life
Which cleansing agent gets precipitated in hard water?
Options
- ACetyl trimethyl ammonium bromide
- BSodium dodecyl benzene sulphonate
- CSodium lauryl sulphate
- DSodium stearate
Correct answer
D. Sodium stearate
Step-by-step solution
(D) ( 2 C ₁₇ H ₃₅ COONa + CaCl ₂ 2 NaCl + ( C ₁₇ H ₃₅ COO )₂ )