Which of the following sugars will not reduce Fehling's reagent?

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Biomolecules are the organic compounds present as an essential constituents of living organisms in different cells.The molecules are generally termed as macromolecules, which are carbohydrates, enzymes, nucleic acids, amino acids and proteins etc. Carbohydrates are classified as sugars and non-sugars include sucrose, glucose, fructose, starch and cellulose. Enzymes are coordinated with various chemical reactions in nucleic acid. Nucleic acids are found in living organisms made up of proteins and natural polymers. Two types that are generally found in biological systems are DNA and RNA nucleic acid. Amino acids are bifunctional groups of carboxyl and amino groups. Proteins are a class of biologically important compounds. They are crucial to virtually all processes in living systems. Some of them are hormones, which serve as chemical messengers that coordinatecertain biochemical activities.
Glucose when treated with Bromine water forms

Benzene ring in phenol is expected to give the characteristic substitution or replacement reactions i.e. halogenation, nitration, sulphonation, alkylation etc. In these reactions, the attacking reagent is electrophile. The phenolic group activates the ortho and para positions in the ring due to conjugation. Disubstitution reactions are quite fast as the electron density in the ring has increased considerably. Phenols do not respond to nucleophilic substitution reactions as it is influenced by phenolic group.
Victor Meyer test gives following observations. Match List I with List II:

List-I	List-II
A. Blood red colouration	I. Tertiary alcohol
B. Blue colouration	II. Phenols
C. Colourless solution	III. Primary alcohol
D. Violet colouration with \(\text{FeCl}_3\)	IV. Secondary alcohol

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Lack of Vitamin B1 causes:

The correct SI unit of molar conductivity is:

In the following statements the in correct statement is :

Formaldehyde undergoes the Cannizzaro reaction because:
(A) It has alpha-hydrogen atom.
(B) It does not have alpha-hydrogen atom.
(C) It does not undergo self-oxidation and reduction on heating with concentrated alkali.
(D) It undergoes self-oxidation and reduction on heating with concentrated alkali.
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The minimum value of \(Z = 3x + 2y\) subjected to the constraints \(2x + y ≥ 7, x + 2y ≥ 8 x, y ≥ 0\) is:

The integrating factor of the differential equation \(x \frac{d y}{d x}-y=2 x^2\) is :

A mark placed on the surface of a sphere is viewed through glass from a position directly opposite. If the diameter of the sphere is 10 cm and refractive index of glass is 1.5, the image would be at

Identify the correct statement(s) from the following Resistivity (\( \rho \)) versus Temperature (T) graphs :

(A) Graph (i), shows \(\rho\) versus \(T\) variation for Copper
(B) Graph (ii), shows \(\rho\) versus \(T\) variation for Silicon
(C) Graph (iii), shows \(\rho\) versus \(T\) variation for semiconductor
(D) Graph (iii), shows \(\rho\) versus T variation for Nichrome
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Arrange the following radiations in the decreasing order of their energy
(A) Microwaves
(B) \( \gamma \)- rays
(C) AM radio waves (D) Infrared waves
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If \(\hat{i}, \hat{j}\) and \(\hat{k}\) are unit vectors along the co-ordinate axes OX, OY and OZ respectively, then
(A) \(\hat{i} \times \hat{j}=\hat{k}\)
(B) \(\hat{k} \times \hat{i}=-\hat{j}\)
(C) \(\hat{j} \cdot \hat{j}=1\)
(D) \(\hat{j} \cdot \hat{k}=0\)
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