Selected the one which is wrongly mapped.
1 point
Sodium carbonate – Washing soda
Sodium chloride – Common salt
Calcium carbonate – Slaked lime
Sodium hydroxide – Caustic soda
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Explanation:
Calcium carbonate (CaCo3)-Slakedlime ( Calcium hydroxide) [Ca(OH) ]
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Sodium carbonate is wrongly mapped. It is commonly known as washing soda, not "sodium hydroxide".
The correct mapping is:
Sodium carbonate - Washing soda
Sodium chloride - Common salt
Calcium carbonate - Slaked lime
Sodium hydroxide - Caustic soda
- Sodium carbonate (Na₂CO₃) - Also known as washing soda, it is a white, crystalline powder that is highly soluble in water. It is used as a cleaning agent and water softener, as well as in the production of glass, paper, and detergents.
- Sodium chloride (NaCl) - Also known as common salt, it is a white, crystalline solid that is highly soluble in water. It is widely used in food seasoning and preservation, as well as in the production of chlorine and caustic soda.
- Calcium carbonate (CaCO₃) - Also known as slaked lime, it is a white, crystalline powder that is widely used in construction as a building material and in the production of cement, lime, and mortar. It is also used in the food industry as a firming agent and in the treatment of water to reduce hardness.
- Sodium hydroxide (NaOH) - Also known as caustic soda, it is a white, crystalline solid that is highly soluble in water. It is widely used in the manufacture of soaps, detergents, paper, and textiles, as well as in the refining of petroleum and in the treatment of waste water.
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