Isomerism

When an optically active compound is placed in a 10 dm tube, it is present 20 gm in a 200 mL solution rotates the PPL by 30^o. Calculate the angle of rotation and specific angle of rotation if above solution diluted to 1 litre.

Which of the following combinations amongst the four Fischer projections represents the same absolute configurations?


                 



       

On chlorination of propane, the number of products having the formula ${\mathrm{C}}_3{\mathrm{H}}_6{\mathrm{Cl}}_2$ is 

Which of the following compound displays geometrical isomerism?

The compound C₂H₅OC₂H₅ and CH₃OCH₂CH₂CH₃ are 

Which of the above compounds are enantiomers?

Which of the above formula represent identical compounds?

Which of the following cannot be written in an isomeric form?

The structures shown here are related as being

The compound with the above configuration is called:

Molecular formula ${\mathrm{C}}_3{\mathrm{H}}_6{\mathrm{Br}}_2$ can have (including stereoisomer):

Which of the following statements is true for a pair of diastereomers?

Which of the following sugars has the configuration (2S, 3R, 4R)?

Stereoisomers differ from each other in what respect?

Dextrorotatory$$$\alpha \text{-}$pinene has a specific rotation ${\left[\alpha \right]}_{\text{D}}^{20}=+{\text{ 51.3}}^{\circ }$. A sample of $$$\alpha \text{-}$pinene containing both the enantiomers was found to have a specific rotation value ${\left[\alpha \right]}_{\text{D}}^{20}=+{\text{ 30.8}}^{\circ }$. The percentages of the (+) and (-) enantiomers present in the sample are, respectively.

Dextrorotatory$$$\alpha \text{-}$pinene has a specific rotation ${\left[\alpha \right]}_{\text{D}}^{20}=+{\text{ 51.3}}^{\circ }$. A sample of $$$\alpha \text{-}$pinene containing both the enantiomers was found to have a specific rotation value ${\left[\alpha \right]}_{\text{D}}^{20}=+{\text{ 30.8}}^{\circ }$. The percentages of the (+) and (-) enantiomers present in the sample are, respectively.

 
Relation between given pair is:

Which of the following structures represents a chiral compound?

What common symmetry of elements if any are found in the stable chair conformer of trans-1, 2-dichlorocyclohexane?