Types of Carbenes

Q.

Hybridisation of singlet carbene is:

1. $sp$

2. $s{p}^2$

3. $s{p}^3$

4. $s{p}^{3}d$

Q. The ratio of the number of hybrid and pure orbitals in $C_6{H}_6$ is :

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

Q.

Hybridisation of singlet carbene is:

1. $sp$

2. $s{p}^2$

3. $s{p}^3$

4. $s{p}^{3}d$

Q. Which of the following satements regarding $Cl{F}_3$ is incorrect?

1. The shape of $Cl{F}_3$ is T-shaped
2. Hybridisation of $Cl-$atom in $Cl{F}_3$ is $s{p}^{3}d$
3. There is one $F-$atom in equitorial position
4. There are three $F-$atoms in equitorial position

Q. Some statements about the structure of diborane are given below :
A) NMR and RAMAN spectral studies have confirmed that four hydrogens of diborane are one type and remaining two are of another type.
B) Electron diffraction studies have shown that diborane contains two coplanar $B{H}_2$ groups.
C) Diborane is a planar molecular.
D) Boron of diborane undergoes $s{p}^2$ hybridisation
The correct statements are :

1. only B, C, D
2. only A, B, C,
3. all are correct
4. only A and B

Q.

Hybridisation of singlet carbene is:

1. $sp$

2. $s{p}^2$

3. $s{p}^3$

4. $s{p}^{3}d$