What is the chemical formula of sodium nitrate?​

Correct option is C

·        The chemical formula of sodium nitrate is NaNO3.

·        It is also known as Chile saltpeter or soda niter. 

·        Sodium nitrate is a white, crystalline solid that is highly soluble in water.

·        It contains sodium cations Na+Na+ and nitrate anions\ (NO_3^-\) held together by ionic bonds.

·        Sodium nitrate has enormous applications in various industries, like agriculture, food preservation, and the preparation of fertilizers, glass, and pyrotechnics.

Incorrect options explanation:

o   The Na-NH₃ reaction, or the reaction between sodium metal (Na) and liquid ammonia (NH₃), is a powerful chemical process with diverse applications in organic chemistry. 

o   NaNO4 is sodium nitrate, a chemical that is used as a preservative in cured meats.

o   The chemical name for NaNO2 is sodium nitrite. It is an inorganic compound that is a white to slightly yellowish crystalline powder.