Isomerism

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 species exhibits a plane of symmetry?

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

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

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

Stereoisomers differ from each other in what respect?

Phenol and benzyl alcohol are 

How many structural formula are possible when one of the hydrogen is replaced by a chlorine atom in anthracene?

C₇H₇Cl shows how many benzenoid aromatic isomers?

The compounds ${\mathrm{C}}_2{\mathrm{H}}_5{\mathrm{OC}}_2{\mathrm{H}}_5 \mathrm{and} {\mathrm{CH}}_3{\mathrm{OCH}}_2{\mathrm{CH}}_2{\mathrm{CH}}_3$ are:

Which of the following will have a meso isomer also?

Among the following structures I to IV,


It is true that

A similarity between optical and geometrical isomerism is that

Which of the following does not show geometrical isomerism?

Of the five isomeric hexanes given below, the isomer which can give exactly two monochlorinated compounds is?

Which type of isomerism is shown by 2, 3 - dichlorobutane?

The number of isomers for the compound with molecular formula  $C_{2}BrClFI$ is: