Advertisements
Advertisements
प्रश्न
Give a reason for the following:
A crusty ‘boiler scale’ is formed in boilers, when hard water is used.
Advertisements
उत्तर
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
संबंधित प्रश्न
What is the major source of fresh water in the city/town/village where you live?
Describe the water-cycle in nature.
Answer the following question:
What is the chemical composition of water ? Give its molecular formula.
What is the composition of water? In what volume its elements combine?
Select the correct answer of the following statement:
A drying agent placed in desiccator.
Household detergents contain mainly ______ and pollute water bodies.
Fill in the blank:
Unpolluted water has _____ amount of dissolved oxygen.
A jumbled word is given here. Write the correct form of the word.
QUIFERA
Complete the following chart by writing appropriate words in the boxes marked (a) to (e).
What is water?
