Answer:1) It is due to large cohesive force acting between the molecules of mercury that the droplets of mercury when brought in contact pulled together to form a bigger drop in order to make potential energy minimum. The temperature of this bigger drop increases since the total surface area decreases.
2) A spherical shape has the minimum surface area to volume ratio of all geometric forms. When two drops of a liquid are brought in contact, the cohesive forces between their molecules coalesce the drops into a single larger drop. This is because, the volume of the liquid remaining the same, the surface area of the resulting single drop is less than the combined surface area of the smaller drops. The resulting decrease in surface energy is released into the environment as heat.
The answer would be D.) Genetic Engineering
Answer:
has aldehyde functional group.
Explanation:
Functional groups are specific group of atoms within molecules that are responsible for the characteristic chemical reactions of those molecules.
A.
has ketone
functional group .
B.
has carboxylic acid
functional group .
C.
has aldehyde
functional group .
D.
has ester
functional group .
Thus
has aldehyde (CHO) group.
When
Aldehyde is reacted with
Alcohol in the presence of
acid the it gives
Hemiacetal, Hemiacetal on further reaction with acid and alcohol gives
Acetal.
In given problem the aldehyde given is
P<span>
henylacetaldehyde and alcohol is
Methanol. The reaction is done stepwise as shown below,</span>