Which among the following detergents is non-ionic in character?

MCQ

A
Sodium laurylsulphate
✓
Pentaerythrityl stearate
C
Cetyltrimethylammonium chloride
D
Sodium $n$-dodecylbenzenesulphonate

✓

Answer

Correct option: B.

Pentaerythrityl stearate

(b) : Non-ionic detergents are esters of high molecular mass alcohols with stearic acid.
Sodium laurylsulphate - Anionic detergent
$
CH _3\left( CH _2\right)_{10} CH _2 OSO _3{ }^{-} Na ^{+}
$
Pentaerythrityl stearate - Non-ionic detergent
Cetyltrimethylammonium chloride - Cationic detergent
$
\left[ CH _3\left( CH _2\right)_{15} N \left( CH _3\right)_3\right]^4 Cl ^{-}
$
Sodium $n$-dodecylbenzenesulphonate - Anionic detergent
$
CH _3\left( CH _2\right)_{11} C _6 H _4 SO _3{ }^{-} Na ^{+}
$

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