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Select the correct answers for the given topic soap and detergents:
Answer variants:
These are effective in hard water.
These are sodium salts of sulphonic acids.
In hard water its effectiveness reduces.
They do not forms scum in hard water.
Detergents do not have the hydrophobic part.
These are sodium salt of long-chain fatty acids.
They forms a scum in hard water.
1. Soaps:
2. Detergents:
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