properties#!#stereochemistry

Stereochemistry of SN

D-Mannose differs from D-glucose in its stereochemistry at C-2 . The pyranose form of D-Mannose is.

Match the compounds in Column I with their structure/characteristic /reaction /stereochemistry etc . Given in coloumn II.

Reaction Mechanism : E2 reactions with illustrations(halogenation and dehalogenation),stereochemistry OF E2,E1cb reaction with illustrations

Give the stereochemistry of the reation (B) .

What is stereochemistry of product ?

Draw the product of following reaction with stereochemistry: