Question

One of the isomer of n alkene with
minimum molecular mass which can
show geometrical isomerism on
catalytic deuteration forms a meso
compound. The molecular mass of
meso compound is 'n' times to atomic
mass of C - 12 atom. What is the value
of 'n'?​

Answer 1

Alkene with minimum molecular mass which can show geometrical isomerism is ,

Explanation:

                          CH3 - CH = CH - CH3   -----> but-2-ene

                             

but - 2-ene form a meso compound on catalytic deuteration molecular mass of meso compound = n x at mass of C-12

no. of  c atom  in  but - 2-ene = 4

molecular mass of but - 2-ene = 56.106g/mol

       56.106=n*12

n=56.106/12 =4.6~ 5

n=5