2-Chlorobutane `overset(15% aq. Solution of ethyl alcohol)rarr`P
In this reaction `70%` recemisation takes place. `%` of inverted product would be :

A 15% alcohol solution means

Mole fraction of ethyl alcohol in aqueous ethyl alcohol solution is 0.25 . Hence percentage of ethyl alcohol by weight is :

Take a plantlet of fenugreek, groundnut or any other bean and sterilize it with a 3 to 5% solution of hydrogen peroxide. Afterwards, keep it in a 70% solution of ethyl alcohol for 4 to 5 minutes. Clean the roots with sterile water and take thin sections of the root nodules. Select good section and place it in a solution of safranin for 2 to 3 minutes. Place the stained section on a glass slide, cover it with a coverslip and observe it under the compound microscope.

A partially racemised (+) - 2-bromo-octane (2^@ RX) on reaction with aq. NaOH in acetone gives an alcohol with 80 % inversion and 20 % racemisation. What is the percentage of back-side attack ?

A partially racemised (+) - 2-bromo-octane (2^@ RX) on reaction with aq. NaOH in acetone gives an alcohol with 80 % inversion and 20 % racemisation. What is the percentage of back-side attack ?

The specific rotation of a pure enantiomer is +10^(@) . The observed rotation, if it is isolated from a reaction with 30% recemisation and 70% inversion is

The specific rotation of a pure enantiomer is +10^(@) . The observed rotation, if it is isolated from a reaction with 30% recemisation and 70% inversion is

Mole fraction of ethyl alcohol in aqueous ethyl alcohol ( C_2H_5OH ) solution is 0.15. Hence percentage of ethyl alcohol by weight is: