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Chemistry CBSE Live product
Class 10
Carbon and its compounds
Chemistry of ethanol, ethanoic acid, soaps and detergents
7.
Characteristics of soaps and detergents
Question:
2
m.
Choose the correct answer:
1
.
Soaps and detergents contain __________ which are molecules that line up around water to break the surface tension.
polymers
enzymes
electrolytes
surfactants
2
.
When combined with soap, hard water forms a thin layer known as __________.
sludge
scum
residue
foam
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