Advertisements
Advertisements
Question
Give a reason for the following:
A crusty ‘boiler scale’ is formed in boilers, when hard water is used.
Advertisements
Solution
A crusty ‘boiler scale’ is formed in boilers, when hard water is used because insoluble CaCO3 or MgCO3 is formed in large scale which gets deposited as crusty ‘boiler scale’. Its formed when bicarbonates of calcium or magnesium are converted into carbonates.
APPEARS IN
RELATED QUESTIONS
The ultimate source of all water on the earth is
Explain how the peculiar variation of density of water with temperature can protect marine-life.
Give balanced chemical equations to show the reaction between Coke and steam.
Explain why:
Rain water does not leave behind concentric rings when boiled.
Explain why:
Table salts become sticky on exposure to humid air during the rainy season.
Answer in your own words.
Why is there a shortage of water even though it occupies about 71% of the earth’s surface?
Which are the three states of water?
Condensation results in the formation of dew on grass.
State whether the following statement is True or False. If false, give the correct statement.
51% of the earth’s surface is covered with water
Why should we not throw cooking oil and fats down the drain?
