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JEE Main 28-Jan-2025 Paper - Shift 2 — JEE STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceJEEJEE Main 28-Jan-2025 Paper - Shift 24 Marks
MCQ
Identify correct conversion during acidic hydrolysis from the following :
(A) starch gives galactose.
(B) cane sugar gives equal amount of glucose and fructose.
(C) milk sugar gives glucose and galactose.
(D) amylopectin gives glucose and fructose.
(E) amylose gives only glucose.
  • A
    (C), (D) and (E) only
  • B
    (A), (B) and (C) only
  • C
    (B), (C) and (E) only
  • D
    (B), (C) and (D) only
✓

Answer

C.
(A) Starch $\xrightarrow{\mathrm{H}^{+} / \mathrm{H}_{2} \mathrm{O}}$ Glucose
(B) Cane sugar $\xrightarrow{\mathrm{H}^{+} / \mathrm{H}_{2} \mathrm{O}}$ glucose + fructose
$\quad$ (Sucrose)$\quad$$\quad$$\quad$$\quad$$\quad$ $50 \% \quad\quad 50 \%$
(C) Milk sugar $\xrightarrow{\mathrm{H}^{+} / \mathrm{H}_{2} \mathrm{O}}$ glucose + galactose
$\quad$ (Lactose)
(D) Amylopectin $\xrightarrow{\mathrm{H}^{+} / \mathrm{H}_{2} \mathrm{O}}$ Glucose
(E) Amylose $\xrightarrow{\mathrm{H}^{+} / \mathrm{H}_{2} \mathrm{O}}$ Glucose
So, correct options are B, C and E only

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