Question

Match and choose the true option
(a) NaCl - Inorganic macromolecules
(b) ${H}_{2} {O}$ - Organic macromolecules
(c) Starch - Organic macromolecules
(d) Glucose - Inorganic macromolecule

Answer 1

Sodium chloride is the salt most liable for the salinity of seawater and of the extracellular fluid of the many multicellular organisms. In its edible kind of salt, it's commonly used as a condiment and food preservative.
Complete answer:
Organic molecules are made from chains of carbon atoms. Inorganic molecules are minerals like salts NaCl which are held together by an ionic bond. Common salt is an ionic compound during which the sodium and chloride ions are within the ratio of 1:1. It’s commonly called table salt and common salt. Seawater is a major source of this salt.
Water doesn't contain any atoms in its molecule. So water is a compound. Starch is Organic macromolecules. Glucose is an organic molecule. The formula of common salt is NaCl. Uses of common salt (NaCl) are:
- It is employed in medicine – saline in nasal spray
- It is employed in fire extinguishers.
- It is employed in water softening
- It is employed in cleansers like shampoo and toothpaste.
- It is employed within the washing soda industry to supply sodium carbonate through the Solvay process.
- It is employed within the paper industry, textile industry, and within the construction of roads
So the correct answer is ‘(a) NaCl - Inorganic macromolecules’.
Note: Evaporation of the ocean water is one of the main processes wont to obtain salt and is most generally followed in countries like India. The crystals obtained usually consist of impurities like calcium sulfate, sodium sulfate, etc. Pure crystals are gained by dissolving the salts with little water and filtering the solution.