If the precipitate formed is soft, loose and slimy, these are __________ and if the precipitate is hard and adhering on the inner wall, it is called _____________.
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Hii.....
answer is ....
a) Sludge .
b) Scum .
i hope this will help you .
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Slimy type of precipitate is sludge and hard type of precipitate is scales
- In Boilers, at times different types of precipitate formation take place when water is boiled in it for the process of obtaining heat.
- The types of precipitate formed are mainly of two types, slimy and hard.
- The slimy type of precipitate formed is soft and loose and comes off easily. This is called sludge.
- The hard type of precipitate sticks to the walls and is hard to remove. This type of precipitate is known as scales.
Thus, the answer to the given question is: slimy soft precipitate is knowns as sludge and hard wall adhering precipitate is known as scales.
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