A compound A with formula C_(4)H_(10)O_(3) on acylation with acetic anhydride gives another compound with molecular mass 190. The number of hydroxyl groups in the compound A are

A compound A with formula C_(4)H_(10)O_(3) on acylation with acetic an

1.	A compound A with formula C_(4)H_(10)O_(3) on acylation with acetic anhydride gives another compound with molecular mass 190. The number of hydroxyl groups in the compound A are
Answer» <html><body><p>2<br/>1<br/>3<br/>Unprdictable</p>Solution :`-OH underset(-H^(+))overset(+CH_(3)<a href="https://interviewquestions.tuteehub.com/tag/coo-409848" style="font-weight:bold;" target="_blank" title="Click to know more about COO">COO</a>^(-))<a href="https://interviewquestions.tuteehub.com/tag/rarr-1175461" style="font-weight:bold;" target="_blank" title="Click to know more about RARR">RARR</a> - OCOCH_(3)` <br/> One `-OH` group on acylation <a href="https://interviewquestions.tuteehub.com/tag/brings-2488276" style="font-weight:bold;" target="_blank" title="Click to know more about BRINGS">BRINGS</a> about a change in <a href="https://interviewquestions.tuteehub.com/tag/molecular-562994" style="font-weight:bold;" target="_blank" title="Click to know more about MOLECULAR">MOLECULAR</a> mass = <a href="https://interviewquestions.tuteehub.com/tag/42-316129" style="font-weight:bold;" target="_blank" title="Click to know more about 42">42</a> <br/> Molecular mass of `C_(4)H_(10)O_(3)` <br/> `= 4 xx 12 + 10 xx 1 + 3 xx 16 = 106` <br/> Actual increase in molecular mass `= 190 - 106 = 84` <br/> `:.` Number of `-OH` groups `= (84)/(42) = 2`</body></html>