2 RBTS PAPER(CHEMISTRY)
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2 RBTS PAPER

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.

1 If both Assertion and reason are true and Reason is the correct explanation of Assertion.
2 If both Assertion and reason are true but Reason is not the correct explanation of Assertion.
3 If Assertion is true but Reason is false.
4 If both Assertion and Reason are false.
Mod. NEET
2 RBTS PAPER

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

1 the same with 2,0 and 1 lone pairs of electrons respectively
2 the same with 1,1 and 1 lone pairs of electrons respectively
3 different with 0, 1 and 2 lone pairs of electrons respectively
4 different with 1, 0 and 2 lone pairs of electrons respectively
NCERT 111
2 RBTS PAPER

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

1 $\mathrm{N}_3^{-}$
2 $\mathrm{C}_2$
3 $\mathrm{H}_3 \mathrm{O}^{+}$
4 $\mathrm{NO}^{+}$
NCERT 121
2 RBTS PAPER

160846 In $\pi^*$ molecular orbitals

1 2 nodal planes are present
2 1 nodal plane is present
3 No nodal planes is present
4 3 nodầ planes are present
NCERT 121
2 RBTS PAPER

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.

1 If both Assertion and reason are true and Reason is the correct explanation of Assertion.
2 If both Assertion and reason are true but Reason is not the correct explanation of Assertion.
3 If Assertion is true but Reason is false.
4 If both Assertion and Reason are false.
Mod. NEET
NEET DIGITAL LIBRARY
2 RBTS PAPER

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.

1 If both Assertion and reason are true and Reason is the correct explanation of Assertion.
2 If both Assertion and reason are true but Reason is not the correct explanation of Assertion.
3 If Assertion is true but Reason is false.
4 If both Assertion and Reason are false.
Mod. NEET
2 RBTS PAPER

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

1 the same with 2,0 and 1 lone pairs of electrons respectively
2 the same with 1,1 and 1 lone pairs of electrons respectively
3 different with 0, 1 and 2 lone pairs of electrons respectively
4 different with 1, 0 and 2 lone pairs of electrons respectively
NCERT 111
2 RBTS PAPER

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

1 $\mathrm{N}_3^{-}$
2 $\mathrm{C}_2$
3 $\mathrm{H}_3 \mathrm{O}^{+}$
4 $\mathrm{NO}^{+}$
NCERT 121
2 RBTS PAPER

160846 In $\pi^*$ molecular orbitals

1 2 nodal planes are present
2 1 nodal plane is present
3 No nodal planes is present
4 3 nodầ planes are present
NCERT 121
2 RBTS PAPER

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.

1 If both Assertion and reason are true and Reason is the correct explanation of Assertion.
2 If both Assertion and reason are true but Reason is not the correct explanation of Assertion.
3 If Assertion is true but Reason is false.
4 If both Assertion and Reason are false.
Mod. NEET
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2 RBTS PAPER

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.

1 If both Assertion and reason are true and Reason is the correct explanation of Assertion.
2 If both Assertion and reason are true but Reason is not the correct explanation of Assertion.
3 If Assertion is true but Reason is false.
4 If both Assertion and Reason are false.
Mod. NEET
2 RBTS PAPER

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

1 the same with 2,0 and 1 lone pairs of electrons respectively
2 the same with 1,1 and 1 lone pairs of electrons respectively
3 different with 0, 1 and 2 lone pairs of electrons respectively
4 different with 1, 0 and 2 lone pairs of electrons respectively
NCERT 111
2 RBTS PAPER

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

1 $\mathrm{N}_3^{-}$
2 $\mathrm{C}_2$
3 $\mathrm{H}_3 \mathrm{O}^{+}$
4 $\mathrm{NO}^{+}$
NCERT 121
2 RBTS PAPER

160846 In $\pi^*$ molecular orbitals

1 2 nodal planes are present
2 1 nodal plane is present
3 No nodal planes is present
4 3 nodầ planes are present
NCERT 121
2 RBTS PAPER

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.

1 If both Assertion and reason are true and Reason is the correct explanation of Assertion.
2 If both Assertion and reason are true but Reason is not the correct explanation of Assertion.
3 If Assertion is true but Reason is false.
4 If both Assertion and Reason are false.
Mod. NEET
For More Updates join with Us
2 RBTS PAPER

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.

1 If both Assertion and reason are true and Reason is the correct explanation of Assertion.
2 If both Assertion and reason are true but Reason is not the correct explanation of Assertion.
3 If Assertion is true but Reason is false.
4 If both Assertion and Reason are false.
Mod. NEET
2 RBTS PAPER

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

1 the same with 2,0 and 1 lone pairs of electrons respectively
2 the same with 1,1 and 1 lone pairs of electrons respectively
3 different with 0, 1 and 2 lone pairs of electrons respectively
4 different with 1, 0 and 2 lone pairs of electrons respectively
NCERT 111
2 RBTS PAPER

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

1 $\mathrm{N}_3^{-}$
2 $\mathrm{C}_2$
3 $\mathrm{H}_3 \mathrm{O}^{+}$
4 $\mathrm{NO}^{+}$
NCERT 121
2 RBTS PAPER

160846 In $\pi^*$ molecular orbitals

1 2 nodal planes are present
2 1 nodal plane is present
3 No nodal planes is present
4 3 nodầ planes are present
NCERT 121
2 RBTS PAPER

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.

1 If both Assertion and reason are true and Reason is the correct explanation of Assertion.
2 If both Assertion and reason are true but Reason is not the correct explanation of Assertion.
3 If Assertion is true but Reason is false.
4 If both Assertion and Reason are false.
Mod. NEET
NEET DIGITAL LIBRARY
2 RBTS PAPER

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.

1 If both Assertion and reason are true and Reason is the correct explanation of Assertion.
2 If both Assertion and reason are true but Reason is not the correct explanation of Assertion.
3 If Assertion is true but Reason is false.
4 If both Assertion and Reason are false.
Mod. NEET
2 RBTS PAPER

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

1 the same with 2,0 and 1 lone pairs of electrons respectively
2 the same with 1,1 and 1 lone pairs of electrons respectively
3 different with 0, 1 and 2 lone pairs of electrons respectively
4 different with 1, 0 and 2 lone pairs of electrons respectively
NCERT 111
2 RBTS PAPER

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

1 $\mathrm{N}_3^{-}$
2 $\mathrm{C}_2$
3 $\mathrm{H}_3 \mathrm{O}^{+}$
4 $\mathrm{NO}^{+}$
NCERT 121
2 RBTS PAPER

160846 In $\pi^*$ molecular orbitals

1 2 nodal planes are present
2 1 nodal plane is present
3 No nodal planes is present
4 3 nodầ planes are present
NCERT 121
2 RBTS PAPER

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.

1 If both Assertion and reason are true and Reason is the correct explanation of Assertion.
2 If both Assertion and reason are true but Reason is not the correct explanation of Assertion.
3 If Assertion is true but Reason is false.
4 If both Assertion and Reason are false.
Mod. NEET