Lewis Kossel Structure

Q.

In LiF, the structure of $F^{-}$ is

1. 

2. 

3. 

4. None of these

Q.

Lewis-Kossel structure of $N_2$ is

1. None of these

2. 

3. 

4. 

Q. Arrange $CsF,RbF,NaF,KF,$ and $LiF$ in the decreasing order of lattice energy:

1. $LiF>NaF>RbF>KF>CsF$
2. $CsF>RbF>LiF>KF>NaF$
3. $CsF>RbF>NaF>KF>LiF$
4. $LiF>NaF>KF>RbF>CsF$

Q. Which of the following species does not have eight valence electrons?

1. $R{b}^{+}$
2. $Xe$
3. $C{a}^{+}$
4. $B{r}^{-}$

Q. Which of the following species contains equal number of $\sigma$- and $\pi$- bonds?

1. $HC{O}_3^{-}$
2. $Xe{O}_4$
3. $(CN{)}_2$
4. $C{H}_2(CN{)}_2$

Q. Which of the following cannot act as central atom?

1. $H$
2. $F$
3. $O$
4. Both $\left(a\right)$ and $\left(b\right)$

Q. The covalency of sulphur in sulphuric acid $\left(H_{2}S{O}_4\right)$ is:

1. 2
2. 8
3. 4
4. 6

Q. The Lewis structure of $C{O}_3^{2-}$ ion is:

1. 
2. 
3. 
4. 

Q. How many non bonding electron pair(s) is/are present in $N_2{H}_4$?

1. 2
2. 1
3. 3
4. 4

Q. In the Lewis dot structure of acetic acid, there are:

1. 8 bond pairs and 4 lone pairs of electrons
2. 6 bond pairs and 6 lone pairs of electrons
3. 4 bond pairs and 8 lone pair of electrons
4. 9 bond pairs and 3 lone pairs of electrons