The carbon dioxide<span> in the atmosphere dissolves in rainwater forming carbonic acid, which, once in contact with rocks, slowly dissolves them.</span>
<span> Bars are found in approximately two-thirds of all spiral galaxies.</span>
Answer:
Nucleophilic reaction
and
Explanation:
A nucleophilic reaction is a type of reaction that involves attack of a specie having a negative charge or a lone pair of electrons on a positive center. This negatively charged specie or specie having a lone pair of electrons is called a nucleophile.
An SN2 reaction is a bimolecular, concerted nucleophilic reaction that leads to inversion of configuration at the carbon center. The leaving group is the group that departs from the frontside of the molecule as the nucleophile attacks from the backside.
Answer: Option (b) is the correct answer.
Explanation:
Chemical formula of citric acid is 
.
It is acidic in nature and therefore, it is used to add tartness or sour flavor to the food like jams, jellies, candies etc.
It is also used as a preservative and thus it helps to preserve various food items for a longer period of time.
If it is multiple choice the answer is <span>C. 0.012 L.</span>
