The best method to prepare cyclohexene from cyclohexanol is by using

a. Conc HCI + ZnCI base 2

b. Conc. H base 3 PO base 4

c. HBr

d. Conc. HCI

'x' gm of a compound A3B2C5 contains 'y' gm of A atoms

 

Using above information

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how to represent the possible fischer projections for 2-bromohexane