Which of following compound is achiral ?
All of these
Total number of stereo isomers possible for the given structure:
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Glucose has optical isomers
Total number of secondary amines (Excluding stereo isomer) possible with the molecular formula $C_5H_{13}N$ is
Total number of isomers, considering both structural and stereoisomers, of cyclic ethers with the molecular formula $C _4 H _8 O$ is. . . . . .
A compound was synthesized by a student, but its structure was not identified. However, his wonderfully helpful instructor told him that it was a meso compound with $5$ carbons and $2$ stereogenic centers. Which of the following structures should the student consider as possibilities for his compound ?