Brown stains in vessels and clothes indicate the presence of high quantities of ________ in water.

A Magnesium
B Calcium
C Manganese
D None of these

Correct Answer: None of these

Brown stains in vessels and clothes generally indicate the presence of high quantities of iron. It causes reddish-brown staining of laundry, porcelain, dishes, utensils and even glassware. Manganese acts in a similar way but causes a brownish-black stain. Soaps and detergents do not remove these stains.
Bissoy MCQ
#General Knowledge #Chemistry

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