Stereoisomerism

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 

The number of optically active isomers observed in 1,2-dichlorobutane is:

Which of the following compound displays geometrical isomerism?

Number of possible isomers (stereoisomers) of$\mathrm{D}-$glucose are:

Which of the above compounds are enantiomers?

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

The structures shown here are related as being

How many stereoisomer of the following molecule are possible? HOOC.CH = C = CH.COOH

The compound with the above configuration is called:

The number of optically active compounds in the isomers of C₄H₉Br is:

The number of isomers of C₃H₅Br₃ (including stereoisomers):

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:

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

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

Which of the following statements must be true for two pure chiral isomers?

Stereoisomers differ from each other in what respect?

(+) - 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?