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Presence of __________ hardness is responsible for the temporary hardness in water.
- a)carbonate
- b)calcium
- c)choride
- d)sulphate
Correct answer is option 'B'. Can you explain this answer?
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Presence of __________ hardness is responsible for the temporary hardn...
Explanation:
Temporary hardness in water is caused by the presence of dissolved calcium and magnesium bicarbonate in water. When water containing these ions is heated, the bicarbonate ions decompose to form carbonate, releasing carbon dioxide gas and leaving behind the insoluble calcium and magnesium carbonates. This causes a build-up of scale in pipes and appliances, reducing their efficiency and lifespan.
Calcium is responsible for the temporary hardness in water because it is more abundant in natural water sources than magnesium, and it has a higher solubility product than magnesium carbonate. Therefore, it is more likely to form a precipitate when bicarbonate ions are removed from the water.
Overall, the presence of calcium ions in water is the main cause of temporary hardness, leading to the formation of scale in pipes and appliances.
Temporary hardness in water is caused by the presence of dissolved calcium and magnesium bicarbonate in water. When water containing these ions is heated, the bicarbonate ions decompose to form carbonate, releasing carbon dioxide gas and leaving behind the insoluble calcium and magnesium carbonates. This causes a build-up of scale in pipes and appliances, reducing their efficiency and lifespan.
Calcium is responsible for the temporary hardness in water because it is more abundant in natural water sources than magnesium, and it has a higher solubility product than magnesium carbonate. Therefore, it is more likely to form a precipitate when bicarbonate ions are removed from the water.
Overall, the presence of calcium ions in water is the main cause of temporary hardness, leading to the formation of scale in pipes and appliances.
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Presence of __________ hardness is responsible for the temporary hardness in water.a)carbonateb)calciumc)chorided)sulphateCorrect answer is option 'B'. Can you explain this answer?
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