160843 Assertion :
In Lewis structures of ${\mathrm{NF}}_3$ and ${\mathrm{CO}}_3{}^{2-}$, nitrogen and carbon occupy the central position whereas fluorine and oxygen occupy the terminal positions.
Reason :
In Lewis representation, the least electronegative atom occupies the central position in the molecule/ ion.

160845 In which of the following only $\pi$-bonds are present:

160846 In ${\pi }^{\ast }$ molecular orbitals

160847 Assertion:
${\mathrm{PF}}_5,{\mathrm{SF}}_6$ and ${\mathrm{H}}_2{\mathrm{SO}}_4$ are the examples of expanded octet molecules.
Reason:
Octet rule is not applicable to the second period elements of the periodic table.

160843 Assertion :
In Lewis structures of ${\mathrm{NF}}_3$ and ${\mathrm{CO}}_3{}^{2-}$, nitrogen and carbon occupy the central position whereas fluorine and oxygen occupy the terminal positions.
Reason :
In Lewis representation, the least electronegative atom occupies the central position in the molecule/ ion.

160844 Molecular shapes of ${\mathrm{SF}}_4,{\mathrm{CF}}_4,{\mathrm{XeF}}_4$ are :

160845 In which of the following only $\pi$-bonds are present:

160846 In ${\pi }^{\ast }$ molecular orbitals

160847 Assertion:
${\mathrm{PF}}_5,{\mathrm{SF}}_6$ and ${\mathrm{H}}_2{\mathrm{SO}}_4$ are the examples of expanded octet molecules.
Reason:
Octet rule is not applicable to the second period elements of the periodic table.

160843 Assertion :
In Lewis structures of ${\mathrm{NF}}_3$ and ${\mathrm{CO}}_3{}^{2-}$, nitrogen and carbon occupy the central position whereas fluorine and oxygen occupy the terminal positions.
Reason :
In Lewis representation, the least electronegative atom occupies the central position in the molecule/ ion.

160844 Molecular shapes of ${\mathrm{SF}}_4,{\mathrm{CF}}_4,{\mathrm{XeF}}_4$ are :

160845 In which of the following only $\pi$-bonds are present:

160846 In ${\pi }^{\ast }$ molecular orbitals

160847 Assertion:
${\mathrm{PF}}_5,{\mathrm{SF}}_6$ and ${\mathrm{H}}_2{\mathrm{SO}}_4$ are the examples of expanded octet molecules.
Reason:
Octet rule is not applicable to the second period elements of the periodic table.

160843 Assertion :
In Lewis structures of ${\mathrm{NF}}_3$ and ${\mathrm{CO}}_3{}^{2-}$, nitrogen and carbon occupy the central position whereas fluorine and oxygen occupy the terminal positions.
Reason :
In Lewis representation, the least electronegative atom occupies the central position in the molecule/ ion.

160844 Molecular shapes of ${\mathrm{SF}}_4,{\mathrm{CF}}_4,{\mathrm{XeF}}_4$ are :

160845 In which of the following only $\pi$-bonds are present:

160846 In ${\pi }^{\ast }$ molecular orbitals

160847 Assertion:
${\mathrm{PF}}_5,{\mathrm{SF}}_6$ and ${\mathrm{H}}_2{\mathrm{SO}}_4$ are the examples of expanded octet molecules.
Reason:
Octet rule is not applicable to the second period elements of the periodic table.

160843 Assertion :
In Lewis structures of ${\mathrm{NF}}_3$ and ${\mathrm{CO}}_3{}^{2-}$, nitrogen and carbon occupy the central position whereas fluorine and oxygen occupy the terminal positions.
Reason :
In Lewis representation, the least electronegative atom occupies the central position in the molecule/ ion.

160844 Molecular shapes of ${\mathrm{SF}}_4,{\mathrm{CF}}_4,{\mathrm{XeF}}_4$ are :

160845 In which of the following only $\pi$-bonds are present:

160846 In ${\pi }^{\ast }$ molecular orbitals

160847 Assertion:
${\mathrm{PF}}_5,{\mathrm{SF}}_6$ and ${\mathrm{H}}_2{\mathrm{SO}}_4$ are the examples of expanded octet molecules.
Reason:
Octet rule is not applicable to the second period elements of the periodic table.