Advertisements
Advertisements
प्रश्न
What do you understand by Temporary hardness?
उत्तर
Temporary hardness is water hardness due to the presence of calcium and magnesium carbonates and bicarbonates, which can be precipitated by heating the water. It can be removed by processes such as boiling or lime softening, and then separation of water from the resulting precipitate.
Temporary hardness is very common and is responsible for the deposition of calcium carbonate scale in pipes and equipment. These deposit formations lead to clogged plumbing and reduced efficiency of heat exchangers.
Temporary hardness is also known as carbonate hardness.
APPEARS IN
संबंधित प्रश्न
Give reason of Icebergs float on ocean water.
Explain how the peculiar variation of density of water with temperature can protect marine-life.
Explain why:
Air dissolved in water contains a higher proportion of oxygen.
Select the correct answer of the following statement:
A drying agent placed in desiccator.
Give a balanced equation for the following conversion:
Magnesium bicarbonate in temporary hard water to magnesium carbonate by boiling.
Fill in the blank:
The type of water softened by addition of washing soda is ______.
What is needed to construct a rain water harvesting pit?
Animal waste, oil and urea are some of the organic impurities present in sewage. Name two more organic impurities present in sewage
What is water?
Dissolve two spoons of common salt in half a cup of water. Now if you want to get the salt back, what will you do?