160842
Assertion: In the formation of water molecule, both hydrogen and oxygen atoms attain octet of electrons. Reason : Oxygen atom forms two ionic or electrovalent bonds with two hydrogen atoms.
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.
Explanation:
In the formation of water molecule, oxygen atom forms covalent bond with each hydrogen atom by sharing electrons so as to complete duplet of hydrogen atom and octet of oxygen atom.
Mod. NEET
2 RBTS PAPER
160863
Which of the following statements is true about hybridisation?
1 The hybridised orbitals have different energies for each orbital.
2 The number of hybrid orbitals is equal to the number of atomic orbitals that are hybridised.
3 Hybrid orbitals form multiple bonds.
4 The orbitals with different energies undergo hybridisation.
Explanation:
The number of hybrid orbitals is equal to the number of atomic orbitals that are hybridised.
Mod. NEET
2 RBTS PAPER
160864
Which of the following statements is not true?
1 Ionic bonds are non-directional while covalent bonds are directional.
2 Formation of $\pi$-bond shortens the distance between the two concerned atoms.
3 Ionic bond is possible between similar and dissimjlar atoms.
4 Linear overlapping of atomic p-orbitals leads to a sigma bond.
Explanation:
Ionic bond cannot be formed between two similar atoms.
Mod. NEET
2 RBTS PAPER
160815
Among the given species identify the isostructural pairs.
1 $\left[\mathrm{NF}_3\right.$ and $\left.\mathrm{BF}_3\right]$
3 $\left[\mathrm{BCl}_3\right.$ and $\left.\mathrm{BrCl}_3\right]$
4 $\left[\mathrm{NH}_3\right.$ and $\left.\mathrm{NO}_3^{-}\right]$
Explanation:
$\mathrm{NF}_3$ (pyramidal) and $\mathrm{BF}_3$ (trigonal planar) $\mathrm{BF}_4{ }^{-}$(tetrahedral) and $\mathrm{NH}_4{ }^{+}$(tetrahedral) $\mathrm{BCl}_3$ (trigonal planar) and $\mathrm{BrCl}_3$ (trigonal bipyramidal) $\mathrm{NH}_3$ (pyramidal) and $\mathrm{NO}_3{ }^{-}$(trigonal planar) Thus, $\mathrm{BF}_4{ }^{-}$and $\mathrm{NH}_4{ }^{+}$are isostructural species.
Mod. NEET
2 RBTS PAPER
160816
Hybridization of carbon in $\mathrm{C}_3 \mathrm{O}_2$ is :
1 $s p$
2 $s p^2$
3 $s p^3$
4 $s p^3 d$
Explanation:
$\mathrm{O}=\mathrm{C}=\mathrm{C}=\mathrm{C}=\mathrm{O}$ each ' $\mathrm{C}$ ' is surrounded by 2 sigma electron pair hence each ' $C$ ' is $s p$ hybridised.
160842
Assertion: In the formation of water molecule, both hydrogen and oxygen atoms attain octet of electrons. Reason : Oxygen atom forms two ionic or electrovalent bonds with two hydrogen atoms.
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.
Explanation:
In the formation of water molecule, oxygen atom forms covalent bond with each hydrogen atom by sharing electrons so as to complete duplet of hydrogen atom and octet of oxygen atom.
Mod. NEET
2 RBTS PAPER
160863
Which of the following statements is true about hybridisation?
1 The hybridised orbitals have different energies for each orbital.
2 The number of hybrid orbitals is equal to the number of atomic orbitals that are hybridised.
3 Hybrid orbitals form multiple bonds.
4 The orbitals with different energies undergo hybridisation.
Explanation:
The number of hybrid orbitals is equal to the number of atomic orbitals that are hybridised.
Mod. NEET
2 RBTS PAPER
160864
Which of the following statements is not true?
1 Ionic bonds are non-directional while covalent bonds are directional.
2 Formation of $\pi$-bond shortens the distance between the two concerned atoms.
3 Ionic bond is possible between similar and dissimjlar atoms.
4 Linear overlapping of atomic p-orbitals leads to a sigma bond.
Explanation:
Ionic bond cannot be formed between two similar atoms.
Mod. NEET
2 RBTS PAPER
160815
Among the given species identify the isostructural pairs.
1 $\left[\mathrm{NF}_3\right.$ and $\left.\mathrm{BF}_3\right]$
3 $\left[\mathrm{BCl}_3\right.$ and $\left.\mathrm{BrCl}_3\right]$
4 $\left[\mathrm{NH}_3\right.$ and $\left.\mathrm{NO}_3^{-}\right]$
Explanation:
$\mathrm{NF}_3$ (pyramidal) and $\mathrm{BF}_3$ (trigonal planar) $\mathrm{BF}_4{ }^{-}$(tetrahedral) and $\mathrm{NH}_4{ }^{+}$(tetrahedral) $\mathrm{BCl}_3$ (trigonal planar) and $\mathrm{BrCl}_3$ (trigonal bipyramidal) $\mathrm{NH}_3$ (pyramidal) and $\mathrm{NO}_3{ }^{-}$(trigonal planar) Thus, $\mathrm{BF}_4{ }^{-}$and $\mathrm{NH}_4{ }^{+}$are isostructural species.
Mod. NEET
2 RBTS PAPER
160816
Hybridization of carbon in $\mathrm{C}_3 \mathrm{O}_2$ is :
1 $s p$
2 $s p^2$
3 $s p^3$
4 $s p^3 d$
Explanation:
$\mathrm{O}=\mathrm{C}=\mathrm{C}=\mathrm{C}=\mathrm{O}$ each ' $\mathrm{C}$ ' is surrounded by 2 sigma electron pair hence each ' $C$ ' is $s p$ hybridised.
160842
Assertion: In the formation of water molecule, both hydrogen and oxygen atoms attain octet of electrons. Reason : Oxygen atom forms two ionic or electrovalent bonds with two hydrogen atoms.
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.
Explanation:
In the formation of water molecule, oxygen atom forms covalent bond with each hydrogen atom by sharing electrons so as to complete duplet of hydrogen atom and octet of oxygen atom.
Mod. NEET
2 RBTS PAPER
160863
Which of the following statements is true about hybridisation?
1 The hybridised orbitals have different energies for each orbital.
2 The number of hybrid orbitals is equal to the number of atomic orbitals that are hybridised.
3 Hybrid orbitals form multiple bonds.
4 The orbitals with different energies undergo hybridisation.
Explanation:
The number of hybrid orbitals is equal to the number of atomic orbitals that are hybridised.
Mod. NEET
2 RBTS PAPER
160864
Which of the following statements is not true?
1 Ionic bonds are non-directional while covalent bonds are directional.
2 Formation of $\pi$-bond shortens the distance between the two concerned atoms.
3 Ionic bond is possible between similar and dissimjlar atoms.
4 Linear overlapping of atomic p-orbitals leads to a sigma bond.
Explanation:
Ionic bond cannot be formed between two similar atoms.
Mod. NEET
2 RBTS PAPER
160815
Among the given species identify the isostructural pairs.
1 $\left[\mathrm{NF}_3\right.$ and $\left.\mathrm{BF}_3\right]$
3 $\left[\mathrm{BCl}_3\right.$ and $\left.\mathrm{BrCl}_3\right]$
4 $\left[\mathrm{NH}_3\right.$ and $\left.\mathrm{NO}_3^{-}\right]$
Explanation:
$\mathrm{NF}_3$ (pyramidal) and $\mathrm{BF}_3$ (trigonal planar) $\mathrm{BF}_4{ }^{-}$(tetrahedral) and $\mathrm{NH}_4{ }^{+}$(tetrahedral) $\mathrm{BCl}_3$ (trigonal planar) and $\mathrm{BrCl}_3$ (trigonal bipyramidal) $\mathrm{NH}_3$ (pyramidal) and $\mathrm{NO}_3{ }^{-}$(trigonal planar) Thus, $\mathrm{BF}_4{ }^{-}$and $\mathrm{NH}_4{ }^{+}$are isostructural species.
Mod. NEET
2 RBTS PAPER
160816
Hybridization of carbon in $\mathrm{C}_3 \mathrm{O}_2$ is :
1 $s p$
2 $s p^2$
3 $s p^3$
4 $s p^3 d$
Explanation:
$\mathrm{O}=\mathrm{C}=\mathrm{C}=\mathrm{C}=\mathrm{O}$ each ' $\mathrm{C}$ ' is surrounded by 2 sigma electron pair hence each ' $C$ ' is $s p$ hybridised.
160842
Assertion: In the formation of water molecule, both hydrogen and oxygen atoms attain octet of electrons. Reason : Oxygen atom forms two ionic or electrovalent bonds with two hydrogen atoms.
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.
Explanation:
In the formation of water molecule, oxygen atom forms covalent bond with each hydrogen atom by sharing electrons so as to complete duplet of hydrogen atom and octet of oxygen atom.
Mod. NEET
2 RBTS PAPER
160863
Which of the following statements is true about hybridisation?
1 The hybridised orbitals have different energies for each orbital.
2 The number of hybrid orbitals is equal to the number of atomic orbitals that are hybridised.
3 Hybrid orbitals form multiple bonds.
4 The orbitals with different energies undergo hybridisation.
Explanation:
The number of hybrid orbitals is equal to the number of atomic orbitals that are hybridised.
Mod. NEET
2 RBTS PAPER
160864
Which of the following statements is not true?
1 Ionic bonds are non-directional while covalent bonds are directional.
2 Formation of $\pi$-bond shortens the distance between the two concerned atoms.
3 Ionic bond is possible between similar and dissimjlar atoms.
4 Linear overlapping of atomic p-orbitals leads to a sigma bond.
Explanation:
Ionic bond cannot be formed between two similar atoms.
Mod. NEET
2 RBTS PAPER
160815
Among the given species identify the isostructural pairs.
1 $\left[\mathrm{NF}_3\right.$ and $\left.\mathrm{BF}_3\right]$
3 $\left[\mathrm{BCl}_3\right.$ and $\left.\mathrm{BrCl}_3\right]$
4 $\left[\mathrm{NH}_3\right.$ and $\left.\mathrm{NO}_3^{-}\right]$
Explanation:
$\mathrm{NF}_3$ (pyramidal) and $\mathrm{BF}_3$ (trigonal planar) $\mathrm{BF}_4{ }^{-}$(tetrahedral) and $\mathrm{NH}_4{ }^{+}$(tetrahedral) $\mathrm{BCl}_3$ (trigonal planar) and $\mathrm{BrCl}_3$ (trigonal bipyramidal) $\mathrm{NH}_3$ (pyramidal) and $\mathrm{NO}_3{ }^{-}$(trigonal planar) Thus, $\mathrm{BF}_4{ }^{-}$and $\mathrm{NH}_4{ }^{+}$are isostructural species.
Mod. NEET
2 RBTS PAPER
160816
Hybridization of carbon in $\mathrm{C}_3 \mathrm{O}_2$ is :
1 $s p$
2 $s p^2$
3 $s p^3$
4 $s p^3 d$
Explanation:
$\mathrm{O}=\mathrm{C}=\mathrm{C}=\mathrm{C}=\mathrm{O}$ each ' $\mathrm{C}$ ' is surrounded by 2 sigma electron pair hence each ' $C$ ' is $s p$ hybridised.
160842
Assertion: In the formation of water molecule, both hydrogen and oxygen atoms attain octet of electrons. Reason : Oxygen atom forms two ionic or electrovalent bonds with two hydrogen atoms.
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.
Explanation:
In the formation of water molecule, oxygen atom forms covalent bond with each hydrogen atom by sharing electrons so as to complete duplet of hydrogen atom and octet of oxygen atom.
Mod. NEET
2 RBTS PAPER
160863
Which of the following statements is true about hybridisation?
1 The hybridised orbitals have different energies for each orbital.
2 The number of hybrid orbitals is equal to the number of atomic orbitals that are hybridised.
3 Hybrid orbitals form multiple bonds.
4 The orbitals with different energies undergo hybridisation.
Explanation:
The number of hybrid orbitals is equal to the number of atomic orbitals that are hybridised.
Mod. NEET
2 RBTS PAPER
160864
Which of the following statements is not true?
1 Ionic bonds are non-directional while covalent bonds are directional.
2 Formation of $\pi$-bond shortens the distance between the two concerned atoms.
3 Ionic bond is possible between similar and dissimjlar atoms.
4 Linear overlapping of atomic p-orbitals leads to a sigma bond.
Explanation:
Ionic bond cannot be formed between two similar atoms.
Mod. NEET
2 RBTS PAPER
160815
Among the given species identify the isostructural pairs.
1 $\left[\mathrm{NF}_3\right.$ and $\left.\mathrm{BF}_3\right]$
3 $\left[\mathrm{BCl}_3\right.$ and $\left.\mathrm{BrCl}_3\right]$
4 $\left[\mathrm{NH}_3\right.$ and $\left.\mathrm{NO}_3^{-}\right]$
Explanation:
$\mathrm{NF}_3$ (pyramidal) and $\mathrm{BF}_3$ (trigonal planar) $\mathrm{BF}_4{ }^{-}$(tetrahedral) and $\mathrm{NH}_4{ }^{+}$(tetrahedral) $\mathrm{BCl}_3$ (trigonal planar) and $\mathrm{BrCl}_3$ (trigonal bipyramidal) $\mathrm{NH}_3$ (pyramidal) and $\mathrm{NO}_3{ }^{-}$(trigonal planar) Thus, $\mathrm{BF}_4{ }^{-}$and $\mathrm{NH}_4{ }^{+}$are isostructural species.
Mod. NEET
2 RBTS PAPER
160816
Hybridization of carbon in $\mathrm{C}_3 \mathrm{O}_2$ is :
1 $s p$
2 $s p^2$
3 $s p^3$
4 $s p^3 d$
Explanation:
$\mathrm{O}=\mathrm{C}=\mathrm{C}=\mathrm{C}=\mathrm{O}$ each ' $\mathrm{C}$ ' is surrounded by 2 sigma electron pair hence each ' $C$ ' is $s p$ hybridised.
