Some Other Terms Related to Stereoisomers

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.

An optically pure compound X gave an ${\left[\alpha \right]}_{\text{D}}^{25}=+20\text{.}{0}^{\circ }$. A mixture of X and its enantiomer Y gave ${\left[\alpha \right]}_{\text{D}}^{25}=+10^{\circ }$. The ratio of X to Y in the mixture is:

(+) - mandelic acid has a specific rotation of 158^o. What would be the observed specific rotation of a mixture of 25% (-) - mandelic acid and 75% (+) - mandelic acid ?

(+) - mandelic acid has a specific rotation of 158^o. What would be the observed specific rotation of a mixture of 25% (-) - mandelic acid and 75% (+) - mandelic acid?

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.

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:

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

Increasing order of stability among the three main conformation (i.e. eclipse, anti, gauche) of ethylene glycol is :

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

 

Mention any two properties of enantiomers.

Enantiomers have the same physical properties.
 
 

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.

Represent the geometrical isomers of azobenzene.

Which of the following compounds will exhibit cis-trans isomerism?

The number of cis-trans isomers with molecular formula ${\mathrm{C}}_2\mathrm{BrClFI}$ is