The correct hybridization states of carbon atoms in the following compound are -

$\stackrel{1}{C}{H}_2=\stackrel{2}{C}H-\stackrel{3}{C}\equiv N$

1. C¹= sp , C²= sp³ , C³= sp²

2. C¹= sp² , C²= sp³ , ${\mathrm{C}}^3$= sp³

3. C¹= sp² , C²= sp² , ${\mathrm{C}}^3$= sp

4. C¹= sp³ , C²= sp³ , ${\mathrm{C}}^3$ = sp³

The number of σ and π bonds in the molecule ${\mathrm{CH}}_2{\mathrm{Cl}}_2$ are -

1.  2 = (${\sigma }_{C-Cl})$ , 1= $\left({\sigma }_{C-H}\right)$ , and 1= π

2. 2 = (${\sigma }_{C-Cl})$ , 2= $\left({\sigma }_{C-H}\right)$ , and 0= π

3. 2 = (${\sigma }_{C-Cl})$ , 1= $\left({\sigma }_{C-H}\right)$ , and 1= π

4. 2 = (${\sigma }_{C-Cl})$ , 1= $\left({\sigma }_{C-H}\right)$ , and 1= π

$\stackrel{1}{C}{H}_2$ $=\stackrel{2}{C}=O$

The correct hybridization states of carbon atoms in the above compound are -

1. C₁= sp , C₂= sp³

2. C₁= sp² , C₂= sp

3. C₁= sp³ , C₂= sp

4. C₁= sp , C₂= sp²

The correct hybridization states of carbon atoms marked as 1,2,3 in the following compound are -

$\stackrel{1}{C}{H}_3-\stackrel{}{C}$ $2H=\stackrel{3}{C}{H}_2$

1. C₁= sp , C₂= sp³ , C₃= sp²

2. C₁= sp² , C₂= sp³ , C₃= sp³

3. C₁= sp³ , C₂= sp² , C₃= sp²

4. C₁= sp³ , C₂= sp³ , C₃= sp³

The number of σ and π bonds in the molecule $C_6{H}_6$ are -

The number of primary carbon atoms in the following compound are-

1. 6              

2. 2

3. 4               

4. 3

The enolic form of ethyl acetoacetate is given below. The number of sigma and pi bonds in the enolic form of ethyl acetoacetate are -

1. 18 sigma bonds and 2 pi-bonds

2. 16 sigma bonds and 1 pi-bond

3. 9 sigma bonds and 2 pi-bonds

4. 9 sigma bonds and 1 pi-bond

The correct hybridization states of carbon atoms in C₆H₆ is/are:

1.  sp² 

2. sp

3. sp³

4.  All of the above

The cylindrical shape of an alkyne is due to the presence of- 

1. Three sigma C-C bonds

2. Three π C-C bonds

3. Two sigma C-C and one π C-C bonds

4. One sigma C-C and two π C-C bonds

The $\mathrm{C}-\mathrm{H}$ bond distance is longer in -

1.  ${\mathrm{C}}_2{\mathrm{H}}_2$

2.  ${\mathrm{C}}_2{\mathrm{H}}_4$

3.  ${\mathrm{C}}_2{\mathrm{H}}_6$

4.  ${\mathrm{C}}_2{\mathrm{H}}_2{\mathrm{Br}}_2$