Question

Match items of Column-I with those in Column-II. \[ \begin{array}{llll} (a) & \text{A laevorotatory carbohydrate} & (p) & \text{Sucrose} \\[6pt] (b) & \text{A non-reducing sugar} & (q) & \text{Maltose} \\[6pt] (c) & \text{Carbohydrate stored in animal body} & (r) & \text{Fructose} \\[6pt] (d) & \text{A disaccharide made of two glucose units} & (s) & \text{Glycogen} \end{array} \]

• A. \((a)-(s),\ (b)-(r),\ (c)-(q),\ (d)-(p)\)
• B. \((a)-(r),\ (b)-(s),\ (c)-(p),\ (d)-(q)\)
• C. \((a)-(r),\ (b)-(p),\ (c)-(s),\ (d)-(q)\)
• D. \((a)-(q),\ (b)-(r),\ (c)-(p),\ (d)-(s)\)

Hint:

\[ \begin{aligned} \text{Fructose} &: \text{Laevorotatory sugar} \\ \text{Sucrose} &: \text{Non-reducing sugar} \\ \text{Maltose} &: \text{Two glucose units} \\ \text{Glycogen} &: \text{Animal storage carbohydrate} \end{aligned} \]

Answer 1

The Correct Option is C

Concept: Carbohydrates are classified as monosaccharides, disaccharides and polysaccharides. Their reducing nature and biological functions help in their identification.

Step 1: Match each item with the correct carbohydrate. \[ \text{Fructose} \rightarrow \text{Laevorotatory monosaccharide} \] \[ (a)\rightarrow(r) \] \[ \text{Sucrose} \rightarrow \text{Non-reducing sugar} \] \[ (b)\rightarrow(p) \]

Step 2: Match the remaining carbohydrates. \[ \text{Glycogen} \rightarrow \text{Storage carbohydrate in animals} \] \[ (c)\rightarrow(s) \] \[ \text{Maltose} \rightarrow \text{Disaccharide composed of two glucose units} \] \[ (d)\rightarrow(q) \] \[ \begin{aligned} \text{Fructose} &: \text{Laevorotatory carbohydrate} \\ \text{Sucrose} &: \text{Non-reducing sugar} \\ \text{Glycogen} &: \text{Storage polysaccharide in animals} \\ \text{Maltose} &: \text{Disaccharide of two glucose units} \end{aligned} \] Therefore, \[ (a-r),\quad (b-p),\quad (c-s),\quad (d-q) \] \[ \boxed{(a-r),\quad (b-p),\quad (c-s),\quad (d-q)} \] Hence, option \(\mathbf{(C)}\) is correct.