In which one of the following situations chemical reaction does not occur?
A) Common salt is exposed to air B) Coal is burnt in air C) Sodium is placed in water D) Iron is kept in moist air
Answers
Answer:
answer is :-
common salt is exposed to air
ANSWER :
A) Common salt is exposed to air.
EXPLANATION :
1. Common salt (NaCl), which contains deliquescent impurities like magnesium chloride and calcium chloride, moistens when exposed to air and eventually forms a solution, especially when it rains.
2. Common salt absorbs moisture from the air when left out in the open.
3. Unlike pepper, salt is hygroscopic, which means that it can draw in ambient water, which has a net negative charge, due to the net positive charge of its chemical constituents, or ions.
4. Salt traces on top of the shaker could draw out water.
5. Sodium chloride, also known as salt (NaCl), is an essential mineral for industry, human and animal health, and food production.
6. In order to separate it from the salts class of chemical compounds, the mineral form of halite, also known as rock salt, is occasionally referred to as common salt.
7. Table salt, common salt, or simply salt are terms that are frequently used to refer to sodium chloride.
8. The chemical that is most frequently used for fish fermentation is table salt (sodium chloride).
9. However, in nations with modern technology, the salt solution may also be enhanced in preservation by the addition of additional materials such sodium benzoate, benzoic, boric, sorbic, and acetic acids.
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