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When octa -O- methyl D- cellobiose is hy...

When octa `-O-` methyl `D-` cellobiose is hydrolyzed by aqueous acid, two `O-` methylated glucose derivative are formed. One is a tetramethyl derivative, and the other is a trimethyl derivative. Whyd is a single methyl substituent lost in this process ?

A

one methyoxy group is lost by `beta-` elimination

B

one methyoxy group is an ester and the other are all ethers.

C

one methyoxy group is part of an acetal, the others are all ethers..

D

one glucose is an `alpha-` methyl glycoside, the other is a `beta-` methyl glycoside

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The correct Answer is:
3
Acetals are hydrolysed in aqueous acids, whereas ethers are not.
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