The structure of trans-2-hexenal among the following is:

 

1.
2.
3.
4.	None of the above

The chiral compound among the following is:

The number of chiral carbons in β–D–(+)– glucose is:

1. Six

2. Three

3. Four

4. Five 

The compound that is least reactive towards nucleophilic substitution reaction is:

1. ${\mathrm{CH}}_2=\mathrm{CHCl}$

2. ${\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{Cl}$

3. ${\mathrm{CH}}_2={\mathrm{CHCH}}_2\mathrm{Cl}$

4. ${\left({\mathrm{CH}}_3\right)}_3\mathrm{C}-\mathrm{Cl}$

R and S enantiomers differ in:

1. Chemical properties

2. Solubility in achiral solvent

3. Rotation of plane polarised light.

4. Dipole moment

The IUPAC name of the following is: 
CH₂ = CH – CH₂ – CH₂ – C ≡ CH

 and .

1. Resonating structures

2. Tautomers

3. Geometrical isomers

4. Optical isomers

Geometrical isomers differ in:

1. Position of the functional group.

2. Position of atoms.

3. Spatial arrangement of atoms.

4. Length of the carbon chain.

Which of the following compounds has an incorrect IUPAC name?

1.
2.
3.
4.

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