Write the important conditions required for the linear combination of atomic orbitals to form molecular orbitals.
(N/A) The following conditions must be satisfied by atomic orbitals to form molecular orbitals:
$(a)$ The combining atomic orbitals must have the same or nearly the same energy. This means that in a homonuclear molecule,the $1s$ atomic orbital of an atom can combine with the $1s$ atomic orbital of another atom,and not with the $2s$ orbital.
$(b)$ The combining atomic orbitals must have proper orientations to ensure that the overlap is maximum.
$(c)$ The extent of overlapping should be large.
$(a)$ The combining atomic orbitals must have the same or nearly the same energy. This means that in a homonuclear molecule,the $1s$ atomic orbital of an atom can combine with the $1s$ atomic orbital of another atom,and not with the $2s$ orbital.
$(b)$ The combining atomic orbitals must have proper orientations to ensure that the overlap is maximum.
$(c)$ The extent of overlapping should be large.
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Given below are two statements:
Statement $I$: $A$ $\pi$ bonding $MO$ has lower electron density above and below the inter-nuclear axis.
Statement $II$: The $\pi^*$ antibonding $MO$ has a node between the nuclei.
In the light of the above statements,choose the most appropriate answer from the options given below:
Statement $I$: $A$ $\pi$ bonding $MO$ has lower electron density above and below the inter-nuclear axis.
Statement $II$: The $\pi^*$ antibonding $MO$ has a node between the nuclei.
In the light of the above statements,choose the most appropriate answer from the options given below:
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View SolutionThermal decomposition of $AgNO_3$ produces two paramagnetic gases. The total number of electrons present in the antibonding molecular orbitals of the gas that has the higher number of unpaired electrons is. . . . .
$N_2$ and $O_2$ are converted into $N_2^+$ and $O_2^+$ respectively. Which of the following is not correct?
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View SolutionAmong $KO_2$,$NO_2^-$,$BaO_2$ and $NO_2^+$,an unpaired electron is present in:
MediumIIT 1997
View SolutionConsider the following statements.
$I$. In the conversion of $O_2$ to $O_2^{2+}$,bond order decreases.
$II$. In the conversion of $O_2$ to $O_2^{2+}$,magnetic property is not changed.
$III$. In the conversion of $O_2$ to $O_2^{2+}$,bond length decreases.
$IV$. $O_2^{2-}$ and $B_2$ have same bond order.
Identify the correct statements.
$I$. In the conversion of $O_2$ to $O_2^{2+}$,bond order decreases.
$II$. In the conversion of $O_2$ to $O_2^{2+}$,magnetic property is not changed.
$III$. In the conversion of $O_2$ to $O_2^{2+}$,bond length decreases.
$IV$. $O_2^{2-}$ and $B_2$ have same bond order.
Identify the correct statements.
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