With reference to D-glucose, which of the following cannot be explained by its open chain structure?
(A) D-Glucose does not give Schiff's test.
(B) The pentaacetate of D-glucose does not react with hydroxylamine.
(C) Glucose is found to exist in two different crystalline forms.
(D) D-glucose reacts with mild oxidizing agents like Br2-H2O and forms gluconic acid.
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Identify the optically active compounds from the following:
(A) \([\text{Co(en)}_3\text{]}^{3+}\)
(B) \(\text{trans-[Co(en)}_2\text{Cl}_2\text{]}^{+}\)
(C) \(\text{cis-[Co(en)}_2\text{Cl}_2\text{]}^{+}\)
(D) \([\text{Cr(NH}_3\text{)}_5\text{Cl}]\)
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Match the items of List - I and List - II

List - I (Item)	List - II (Definition/Term)
(A) Instantaneous Rate	(I) rate constant
(B) Average Rate	(II) rate law
(C) Mathematical expression for rate of reaction in terms of concentration of reactants	(III) Short interval of time
(D) Rate of reaction for zero order reaction is equal to	(IV) long direction of time

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Match List-I with List-II 

List-I	List-II
(A) \(\Lambda _{ m }\) of \(K C l\) increases on dilution	\(I\).  is a linear. Graph
(B) \(\Lambda_m\) of \(CH _3 COOH\) increases on dilution	\(II\) is a non-linear graph
(C) \(\Lambda_m\) of \(K C l\) versus (molarity) \(^{1 / 2}\)	\(III\) due to increased degree of ionisation
(D) \(\Lambda_m\) of \(CH _3 COOH\) versus (molarity) \(^{1 / 2}\)	\(IV\) due to weakening of interionic attractions

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Given below are the steps involved in the process of zone refining for removing impurities which are more soluble in the melt than solid state of the metal.
A. Impurities get concentrated at one end.
B. As the heater moves forward, the pure metal crystallises out of the melt left behind and the impurities pass to the next zone.
C. A mobile heater surrounding the rod of impure metal is fixed at its one end.
D. The end is cut off.
E. The molten zone moves along with the heater which is moved forward.
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At a certain temperature, the value of the slope of the plot of osmotic pressure (\(\pi\)) against concentration (\(\text{C}\) in mol \(\text{L}^{-1}\)) of a certain polymer solution is 291R.
The temperature at which osmotic pressure is measured is

Correct order of boiling points in the following is :
(A) \(CH_3CHO\)
(B) \(CH_3COOH\)
(C) \(CH_3CH_2OH\)
(D) \(CH_3CH_3\)
(E) \(CH_3CH_2Cl\)
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DNA fingerprinting is used for:
(A) Forensic Laboratories for identification of criminals
(B) To identify paternity of an individual
(C) To identify the dead bodies by comparing the DNA of parents or children
(D) To identify racial groups, to rewrite biological evaluations.
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In Clemmensen reduction the carbonyl compound is treated with

The function \(f(x)=|x-3|, x \in R\) is:

In an electromagnetic wave, the amplitude of magnetic field is \( 1.1 \times 10^{-6} \text{ T} \). What is the amplitude of electric field?

Read the given passage carefully and answer the questions
Salmonella typhi is a pathogenic bacterium which causes typhoid fever in human beings. Sustained high fever (39° to 40°C), weakness, stomach pain, constipation, headache and loss of appetite are some of the common symptoms of this disease. Typhoid fever could be confirmed by Widal test. Plasmodium enters the human body as sporozoites. The parasites initially multiply within the liver cells and then attack the red blood cells (RBCs) resulting in their rupture. The rupture of RBCs is associated with release of a toxic substance, haemozoin, which is responsible for the chill and high fever recurring every three to four days. There is lymphoid tissue also located within the lining of the major tracts (respiratory, digestive and urogenital tracts) called mucosa-associated lymphoid tissue (MALT). In our body, cell growth and differentiation is highly controlled and regulated. In cancer cells, there is breakdown of regulatory mechanisms. Normal cells show a property called contact inhibition by virtue of which contact with other cells inhibits their uncontrolled growth. Cancerous cells just continue to divide giving rise to masses of cells called tumors. Tumors are of two types: benign and malignant. Cannabinoids are a group of chemicals, which interact with cannabinoid receptors present principally in the brain. Generally taken by inhalation and oral ingestion, these are known for their effects on cardiovascular system of the body.
Widal test is used to diagnose

In a semiconductor, there are :
(A) no free electrons at any temperature
(B) no free electrons at 0 K
(C) number of free electrons increase with temperature
(D) number of free electrons decrease with temperature
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