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Biomolecules — Chemistry STD 12 Science — Question

Maharashtra BoardEnglish MediumSTD 12 ScienceChemistryBiomolecules1 Mark
MCQ
One mole of stachyose on hydrolysis yields
  • ✓
    1 mole of glucose +1 mole of fructose +2 moles of galactose
  • B
    2 moles of glucose +1 mole of fructose +1 mole of galactose
  • C
    1 mole of glucose +2 moles of fructose +1 mole of galactose
  • D
    2 moles of glucose +2 moles of fructose.
✓

Answer

Correct option: A.
1 mole of glucose +1 mole of fructose +2 moles of galactose
(a) :
$
: \underset{\text { Stachyose }}{ C _{24} H _{42} O _{21}}+3 H _2 O \xrightarrow{ H ^{+}} \underset{\text { Glucose }}{ C _6 H _{12} O _6}+\underset{\text { Fructose }}{ C _6 H _{12} O _6}
$$+\underset {Galactose} {2C_6H_{12}O_6}$

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