Question

A compound having molecular formula `C_(5)H_(10)O_(5)` was reacted with excess of `CH_(3)COCl` to give a compound having molecular weight 318 gm. Predict the number of hydroxy groups present into the unknown compound.

Answer 1

Correct Answer - 4
In reaction Ist 6 moles are used. 2 moles are used for acid-base reaction.
So, x=6
In 2nd reaction 3 moles are used y=3
In 3rd reaction 3 moles are used z=3
x+y+z=6+3+3
=12