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Hard water is not fit for washing clothe...

Hard water is not fit for washing clothes because

A

it contains `Na_(2), SO_(4)`, and KCI

B

it gives precipitate with soap

C

it contains impurities

D

it is acidic in nature

Text Solution

Verified by Experts

The correct Answer is:
B
`2 RCOO Na + Mg^(2+) rarr underset("Insoluble")(RCOO)_(2) Mg+ 2 Na^(oplus)`
` 2 RCOONa + Ca^(2+) rarr underset("Insolouble")(RCOO)_(2) Ca+ 2Na^(oplus)`
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