The correct order of –I effect is:

1.	-NR3+ > -OR  > -F
2.	-F > -NR3+ > -OR
3.	-NR3+ > -F  > -OR
4.	-OR  > -NR3+ > -F

The chiral compound among the following is:

What is the partial pressure of toluene in the vapour phase during its steam distillation?

The correct IUPAC name, among the following, is:

An organic compound contains 69% carbon, and 4.8% hydrogen, the remainder being oxygen. The masses of carbon dioxide, and water produced when 0.20 g of this substance is subjected to complete combustion would be respectively -

1. 0.506 g, 0.0864 g

2. 0.906 g, 0.0864 g

3. 0.0506 g, 0.864 g

4. 0.0864 g, 0.506 g

In the organic compound
$$CH₂=CH–CH₂–CH₂–C≡CH, which pair of hybridized orbitals is involved in forming the C₂–C₃ bond?
1. sp – ${\mathrm{sp}}^2$ 

2. sp – ${\mathrm{sp}}^3$

3. ${\mathrm{sp}}^2$ – ${\mathrm{sp}}^3$

4. ${\mathrm{sp}}^3$ – ${\mathrm{sp}}^3$

Regardless of the specific technique used (GC, HPLC, TLC, etc.), what is the fundamental mechanism required for all chromatographic separations to occur?

1. Use of molecules that are soluble in water

2. Use of inert carrier gas

3. Calculation of R_f value for the molecule separated

4. Use of a mobile and a stationary phase

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

The number of σ and π bonds in the molecule $C_6{H}_{12}$ are:

1. 7 = (${\sigma }_{C-C})$ , 11 =  $\left({\sigma }_{C-H}\right)$, and 0= π 

2. 6 = (${\sigma }_{C-C})$ , 12 =  $\left({\sigma }_{C-H}\right)$, and 0= π 

3. 12 = (${\sigma }_{C-C})$ , 6 =  $\left({\sigma }_{C-H}\right)$, and 1= π 

4. 5 = (${\sigma }_{C-C})$ , 13 =  $\left({\sigma }_{C-H}\right)$, and 1= π 

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