Answer
Verified
396k+ views
Hint: Atomicity of an element is defined as the total number of atoms present in one molecule of the element. Depending upon the number of atoms present in a molecule, it can be monatomic, diatomic, triatomic, or polyatomic.
Complete answer:
Ozone has the molecular formula ${{O}_{3}}$. Ozone is another form of oxygen element.
We know that the atomicity is the total number of atoms present in one molecule. For example, oxygen is present in the atmosphere as ${{O}_{2}}$. It has two oxygen atoms, therefore, its atomicity is 2.
Similarly, we can determine the atomicity of ozone. One molecule of ozone (${{O}_{3}}$) is composed of three atoms. Thus, the atomicity of oxygen in ozone is 3. In other words, we can say that ozone is a triatomic molecule.
Alternatively, we can also find out the number of oxygen atoms (i.e. atomicity) in ozone from the ratio of molecular mass of ozone to the atomic mass of oxygen., i.e.
\[\text{Atomicity = }\dfrac{\text{molecular}\,\text{mass}\,\text{of}\,{{\text{O}}_{3}}}{\text{atomic}\,\text{mass}\,\text{of}\,\text{O}}\]
Atomic mass of oxygen = 16g
Molecular mass of ${{O}_{3}}$ = $3\times 16$ = 48g
Therefore, on dividing the two, we get atomicity = $\dfrac{48g}{16g}=3$.
Hence, atomicity of oxygen in ozone molecules is 3.
So, the correct answer is “Option D”.
Additional Information: Structure of ozone molecule is explained by resonance.
Ozone is found in the upper atmosphere. It is formed by the action of ultraviolet radiation on ${{O}_{2}}$ . The high energy UV radiation splits ${{O}_{2}}$ into oxygen atoms, which react with ${{O}_{2}}$ to form ${{O}_{3}}$.
\[\begin{align}
& {{O}_{2}}\xrightarrow{hv}O+O \\
& O+{{O}_{2}}\to {{O}_{3}} \\
\end{align}\]
Note: Note that ozone is a homonuclear molecule as it contains only one type of atoms. It is easier to count the total number of atoms in homonuclear molecules than in heteronuclear molecules, which contain more than one type of atoms. So in such cases, divide the mass of the molecule by the mass of the atom, of which you want to find the atomicity.
Complete answer:
Ozone has the molecular formula ${{O}_{3}}$. Ozone is another form of oxygen element.
We know that the atomicity is the total number of atoms present in one molecule. For example, oxygen is present in the atmosphere as ${{O}_{2}}$. It has two oxygen atoms, therefore, its atomicity is 2.
Similarly, we can determine the atomicity of ozone. One molecule of ozone (${{O}_{3}}$) is composed of three atoms. Thus, the atomicity of oxygen in ozone is 3. In other words, we can say that ozone is a triatomic molecule.
Alternatively, we can also find out the number of oxygen atoms (i.e. atomicity) in ozone from the ratio of molecular mass of ozone to the atomic mass of oxygen., i.e.
\[\text{Atomicity = }\dfrac{\text{molecular}\,\text{mass}\,\text{of}\,{{\text{O}}_{3}}}{\text{atomic}\,\text{mass}\,\text{of}\,\text{O}}\]
Atomic mass of oxygen = 16g
Molecular mass of ${{O}_{3}}$ = $3\times 16$ = 48g
Therefore, on dividing the two, we get atomicity = $\dfrac{48g}{16g}=3$.
Hence, atomicity of oxygen in ozone molecules is 3.
So, the correct answer is “Option D”.
Additional Information: Structure of ozone molecule is explained by resonance.
Ozone is found in the upper atmosphere. It is formed by the action of ultraviolet radiation on ${{O}_{2}}$ . The high energy UV radiation splits ${{O}_{2}}$ into oxygen atoms, which react with ${{O}_{2}}$ to form ${{O}_{3}}$.
\[\begin{align}
& {{O}_{2}}\xrightarrow{hv}O+O \\
& O+{{O}_{2}}\to {{O}_{3}} \\
\end{align}\]
Note: Note that ozone is a homonuclear molecule as it contains only one type of atoms. It is easier to count the total number of atoms in homonuclear molecules than in heteronuclear molecules, which contain more than one type of atoms. So in such cases, divide the mass of the molecule by the mass of the atom, of which you want to find the atomicity.
Recently Updated Pages
Basicity of sulphurous acid and sulphuric acid are
Three beakers labelled as A B and C each containing 25 mL of water were taken A small amount of NaOH anhydrous CuSO4 and NaCl were added to the beakers A B and C respectively It was observed that there was an increase in the temperature of the solutions contained in beakers A and B whereas in case of beaker C the temperature of the solution falls Which one of the following statements isarecorrect i In beakers A and B exothermic process has occurred ii In beakers A and B endothermic process has occurred iii In beaker C exothermic process has occurred iv In beaker C endothermic process has occurred
What is the stopping potential when the metal with class 12 physics JEE_Main
The momentum of a photon is 2 times 10 16gm cmsec Its class 12 physics JEE_Main
How do you arrange NH4 + BF3 H2O C2H2 in increasing class 11 chemistry CBSE
Is H mCT and q mCT the same thing If so which is more class 11 chemistry CBSE
Trending doubts
Difference between Prokaryotic cell and Eukaryotic class 11 biology CBSE
Fill the blanks with the suitable prepositions 1 The class 9 english CBSE
Write an application to the principal requesting five class 10 english CBSE
Difference Between Plant Cell and Animal Cell
a Tabulate the differences in the characteristics of class 12 chemistry CBSE
Change the following sentences into negative and interrogative class 10 english CBSE
What organs are located on the left side of your body class 11 biology CBSE
Discuss what these phrases mean to you A a yellow wood class 9 english CBSE
List some examples of Rabi and Kharif crops class 8 biology CBSE