Answer: The molecular formula will be ![C_9H_{18}N_6](https://tex.z-dn.net/?f=C_9H_%7B18%7DN_6)
Explanation:
Molecular formula is the chemical formula which depicts the actual number of atoms of each element present in the compound.
Empirical formula is the simplest chemical formula which depicts the whole number of atoms of each element present in the compound.
To calculate the molecular formula, we need to find the valency which is multiplied by each element to get the molecular formula.
The equation used to calculate the valency is:
![n=\frac{\text{molecular mass}}{\text{empirical mass}}](https://tex.z-dn.net/?f=n%3D%5Cfrac%7B%5Ctext%7Bmolecular%20mass%7D%7D%7B%5Ctext%7Bempirical%20mass%7D%7D)
empirical mass of ![C_3H_6N_2=3\times 12+6\times 1+2\times 14=70g](https://tex.z-dn.net/?f=C_3H_6N_2%3D3%5Ctimes%2012%2B6%5Ctimes%201%2B2%5Ctimes%2014%3D70g)
Molecular mass= 214 g/mol
![n=\frac{214}{70}=3](https://tex.z-dn.net/?f=n%3D%5Cfrac%7B214%7D%7B70%7D%3D3)
Thus molecular formula will be ![3\times C_3H_6N_2=C_9H_{18}N_6](https://tex.z-dn.net/?f=3%5Ctimes%20C_3H_6N_2%3DC_9H_%7B18%7DN_6)
Hurricanes, Tornadoes, and Thunderstorms all have low-pressure air.
Mn metal can be used as a sacrificial electrode to prevent the rusting of an iron pipe. So, the correct option is (c) Mn.
Commonly, sacrificial electrodes are employed to stop another metal from corroding or oxidising. A metal that is more reactive than the metal being shielded must serve as the sacrificial electrode. Magnesium, aluminium, and zinc are the three metals most frequently used in sacrificial anodes.
Manganese-Magnesium (Mn-Mg) electrode is more suited for on-shore pipelines where the electrolyte (soil or water) resistivity is higher since it has the highest negative electropotential of the three. In order to replenish any electrons that could have been lost during the oxidation of the shielded metal, the highly active metal offers its electrons.
Therefore, Mn metal can be used as a sacrificial electrode to prevent the rusting of an iron pipe. So, the correct option is (c) Mn.
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"Transition metal elements" are the type of element which have atomic radii which remain relatively constant across a period.
Periods refer to the horizontal lines of the periodic table. Each period represents the sequential occupation of an atom's valence shell orbitals, also with longer periods representing the employment of an atom's d subshell orbitals.
As the atomic number rises, more electrons, as well as protons, are present, increasing attraction over time, which drives the atomic radius to shrink over time.
Therefore, "Transition metal elements" are the type of element which have atomic radii which remain relatively constant across a period.
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