Isomerism in Organic Compounds

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.

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

Which of the above compounds are enantiomers?

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:

The number of cis-trans isomer possible for the following compound

 

Which are the pairs of enantiomers and diastereomers from the following

The geometrical isomerism in oximes are called cis-trans isomers.

Draw the geometrical isomers of acetaldoxime.

Which isomerism is shown by the following 

The given structure represents the Z-azobenzene.

The given structure represents the E-azobenzene.

Draw the E-Z geometrical isomers of azobenzene.

Give an example of dyad system of tautomerism.

Hydrogen cyanide can exhibit dyad system of tautomerism.

Which of the following compounds which exhibits a dyad system of tautomerism.

Represent the different forms of triad tautomers.

Give an example of triad tautomerism.