The use of cold methanol is important because it is used to recrystallize or solidify the product.
Since, ice bath is also used in nitration of methyl benzoate because in this reaction the concentrated acid like sulfuric acid is used with water and it is very exothermic.
The formation pure solid from the impure solid compound by mixing with hot solvent and form saturated solution. Now, this solution as cools and pure crystal grows when solubility of the compound decreases. This whole process is called re-crystallization.
learn about re-crystallization
brainly.com/question/14918321
#SPJ4
Answer:
Neutral
Explanation:
Atoms on the periodic table all have neutral electric charges. This is because they have an equal number of protons, which are positivly charged, and electrons, which are negatively charged.
Answer:
someone people use Doppler radar
Explanation:
Answer:

Explanation:
Given that,
The frequency of the light, 
We need to find the wavelength of the light.
The relation between frequency, wavelength and the speed of light is given by :

So, the wavelength of the light is
.