A compound having a metal-to-metal bond is:

1. Cupric chloride           

2. Stannous chloride

3. Mercurous chloride     

4. Mercuric chloride

Which of the following pair of elements can form an ionic compound?

The type of molecular forces of attraction present in the following compound is:

The species showing $p\pi$-$d\pi$  overlapping is :

1. $N{O_3}^{-}$

2. $P{O_4}^{3-}$

3. $C{O_3}^{2-}$

4. $N{O_2}^{-}$

Which of the following interaction lies in the range of 8 - 42 kJ/mol?

1. ${\mathrm{H}}_2...{\mathrm{H}}_2\mathrm{O}$                               

2. HCl...HCI

3. ${\mathrm{H}}_2\mathrm{O}$...HF                                 

4. all

The number of antibonding electrons pairs in ${O_2}^{2-}$ on the basis of MO theory are:

(1) 4

(2) 3

(3) 2

(4) 5

If ${\mathrm{CdI}}_2$ is pink in colour, the ${\mathrm{CdCl}}_2$ will be '.............' coloured.

(1) yellow         

(2) red                 

(3) blue                   

(4) cannot be predicted

Which are true statements among the following?

(1) $P{H}_5$ and $BiC{l}_5$ does not exist 

(2) $p\pi$-$d\pi$ bonds are present in $S{O}_2$ 

(3) Electrons travel with speed of light 

(4) $Se{F}_4$ and $C{H}_4$ has same charge on central atom

(5) ${I_3}^{+}$ has bent geometry 

(a) 1,3 

(b) 1,2,5 

(c) 1,3,5

(d) 1,2,4 

In which molecule all atoms are coplanar?

1. $C{H}_4$

2. $B{F}_3$

3. $P{F}_3$

4. $N{H}_3$

Among the following which is paramagnetic?

1. \(\text{Cl}_2 \text{O}_6\)
2. \(\text{Cl}_2 \text{O}_7\)
3. \(\text{Cl}_2 \text{O}\)
4. \(\text{ClO}_2\)