Bond Order by MOT

Q.

Calculate the bond order of ${\mathrm{O}}_2$.

Q.

Calculate the bond order of $O_2^{-}$.

Q.

The relationship between the dissociation energy of $N_2$ and is :${N_2}^{+}$

1. Dissociation energy of N₂can either be lower or higher than the dissociation energy of

2. Dissociation energy of N₂> dissociation energy of

3. Dissociation energy of > dissociation energy of N₂

4. Dissociation energy of N₂= dissociation energy of

Q. 61.how to find bond order of compounds like CO, NH4+etc?

Q.

Explain, how is the electronegativity of carbon atoms related to their state of hybridisation in an organic compound?

Q.

Which of the following molecule has bond order 1/2?

1. O₂

2. F₂

3. H₂⁺

4. N₂

Q.

The number of bonding and antibonding electrons respectively in CO molecule is

1. 8, 2

2. 2, 8

3. 4, 2

4. 2, 4

Q. what is basic difference between antibonding and bonding

Q.

A molecule or ion is stable if

1. N_b = N_a

2. N_b < N_a

3. N_a < N_b

4. N_a – N_b = +ve

Q. The bond order is maximum in:

1. $O_2$
2. $O_2^{-}$
3. $O_2^{+}$
4. $O_2^{2-}$

Q. According to molecular orbital theory, which of the following does not exist?

1. $H_2^{2-}$
2. $H{e}_2^{2-}$
3. $H{e}_2^{+}$
4. $H_2^{-}$

Q.

Which of the following molecules will have smallest bond enthalpy?

1. H-I

2. H-F bond

3. H-Cl

4. H-Br

Q.

Among $K{O}_2,Al{O}_{2^{-}},Ba{O}_2$ and $N{O}_2^{+}$ unpaired electron is present in

1. NO₂₊ and BaO₂

2. KO₂ only

3. KO₂ and AlO₂^-1

4. BaO₂ only

Q. How many species are dimagnetic and have their bond order greater than 2.5?
$N_2,N_2^{\oplus },N{O}^{\oplus },N{O}^{\ominus },CO,C{N}^{\ominus },K{O}_2,N{a}_2{O}_2$

Q.

Among $K{O}_2$, ${Al{O}_2}^{-}$, $Ba{O}_2$, ${N{O}_2}^{+}$ unpaired electron is present in:

1. 

2. 

3. 

4. 

Q. In which of the following ionization processes, the bond order has increased and the magnetic behaviour has changed ?

1. $C_2\to C_2^{+}$
2. $NO\to N{O}^{+}$
3. $O_2\to O_2^{+}$
4. $N_2\to N_2^{+}$

Q. Which one of the following pair of species have the same bond order?
(NEET 2017)

Q. Which of the following options represents the incorrect bond order ?

1. $C{O}_3^{-2}=1.33$
2. $O_3=1.5$
3. $O_2^{-}=2.0$
4. $C{N}^{-}=3.0$

Q. A simplified application of the molecular orbital theory to the hypothetical molecule $\text{'OF'}$, would give its bond order as:

1. 2
2. 1.5
3. 1
4. 0.5

Q. 5. CuCl or NaCl which one is more covalent &

Q. How many species are dimagnetic and have their bond order greater than 2.5?
$N_2,N_2^{\oplus },N{O}^{\oplus },N{O}^{\ominus },CO,C{N}^{\ominus },K{O}_2,N{a}_2{O}_2$

Q. Lowest unoccupied molecular orbital of $C_2$ molecule is

1. $\sigma 2p_z$
2. $\pi 2p_x$
3. ${\sigma }^{\ast }2p_z$
4. ${\pi }^{\ast }2p_x$

Q. Which of the following is correct order regarding bond order?

1. $O_2^{2-}<O_2^{-}<O_2<O_2^{+}$
2. $O_2^{+}<O_2<O_2^{-}<O_2^{2-}$
3. $O_2<O_2^{+}<O_2^{-}<O_2^{2-}$
4. $O_2<O_2^{2-}<O_2^{-}<O_2^{+}$