Which of the following species has a bond angle of \(120^\circ\)?
1. \(\mathrm{{SF}_6}\)
2. \(\mathrm{NCl_3}\)
3. \(\mathrm{BCl_3}\)
4. \(\mathrm{PH_3}\)

Xe F${}_2$ is isostructural with : 

1. ${\mathrm{SbCl}}_3$

2. ${\mathrm{BCl}}_3$

3. ${\mathrm{TeF}}_2$

4. ${\mathrm{ICl}}_2^{-}$

Mg₂C₃ reacts with water forming propyne ${\mathrm{C}}_3^{4-}$ . The number of sigma and pie bonds in \(C_{3}^{4-}\)is-  

1. Two sigma and two pi bonds.             

2. Three sigma and one pi bonds.           

3. Two sigma and one pi bonds.          

4. Two sigma and three pi bonds.

The correct shape and hybridization for XeF₄ are:

1. octahedral, sp³d²

2. trigonal bipyramidal, sp³d³

3. planar triangle, sp³d³

4. square planar, sp³d²

The correct order of electronegativity of hybrid orbitals of carbon is:

1. sp > sp² < sp³             

2. sp > sp² > sp³

3. sp < sp² > sp³             

4. sp < sp² < sp³

The hybridisations of atomic orbitals of nitrogen in \(\mathrm{NO}^{+}\), \(N O_3^{-}\) and NH₃ respectively are:

1. $\mathrm{sp},$ ${\mathrm{sp}}^3$ $\mathrm{and}$ ${\mathrm{sp}}^2$

2. ${\mathrm{sp}}^2,$ ${\mathrm{sp}}^3$ $\mathrm{and}$ $\mathrm{sp}$

3. $\mathrm{sp},$ ${\mathrm{sp}}^2$ $\mathrm{and}$ ${\mathrm{sp}}^3$

4. ${\mathrm{sp}}^2,$ $\mathrm{sp}$ $\mathrm{and}$ ${\mathrm{sp}}^3$

Which of the compounds given below will exhibit a linear structure?

1. NO₂

2. HOCl

3. O₃

4. N₂O

Compound in which central atom assumes sp³d hybridisation is

1. SO₃

2. PCl₅

3. SO₂

4. PCl₃