Which of the following is known as Hinsberg's reagent?

The characteristic oxidation state of Lanthanoids is +3, but Ce shows +4 oxidation state because…
(A) It has variable ionization enthalpy
(B) It has a tendency to attain noble gas configuration
(C) It has a tendency to attain \(f^0\) configuration
(D) It resembles \(\mathrm{Pb}^{4+}\)

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Many halogen containing organic compounds are present in nature and some of them are clinically useful. These classes of organic compounds find a wide range of applications in our daily life as well as in industries. Many of the polyhalogen compounds are useful too in agriculture. However, some of these compounds cannot be easily decomposed and are thus considered to be environmental hazards. These halo compounds are prepared via different synthetic routes where a variety of organic compounds can be used as substrates such as amines, hydrocarbons etc. They are used as solvents for relatively non-polar compounds. These compounds exhibit substitution and elimination reactions, in addition to their reactions with different metals, which leads to the formation of a versatile starting material for others organic compounds.
Chloroform when slowly oxidized by air in the presence of light releases

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The term vitamin was coined from the word vital +amine since the earlier identified compounds had amino groups. Later work showed that most of them didn't contain amino groups, so the letter "e" was dropped and ther term vitamin is used these days.
Vitamins are classified into two groups depending upon their solubility in water or fat. Fat soluble vitamins are soluble in fat and oils but insoluble in water. They are stored in liver and adipose (fat storing) tissues. Water-soluble vitamins are soluble in water. They must be supplied regularly in the diet as they are readily excreated in urine.
Which Vitamin is known as Pyridoxine?

Match List-l with List-II

List-l (Order of reaction)	List-II (Expressions/Unit)
(A) Unit of zero order	(I) \(k t=[ R ]_0-[ R ]_t\)
(B) Unit of First order	(II) \(mol L ^{-1} s^{-1}\)
(C) Integrated Rate Law for zero order	(III) \(s^{-1}\)
(D) Integrated Rate Law for First order	(IV) \([ R ]=[ R ]_0 e^{-k t}\)

Choose the correct answer from the options given below :

The half-cell reaction is the one that:

Which one of the following is most reactive towards substitution nucleophilic unimolecular (\(\text{S}_1\)) reactions?

The graph shows the variation of potential difference between the plates of two capacitors A and B with the increase of charge stored by them. From the graph we can conclude:

Which one of the given assisted reproductive technologies (ART) involves transfer of fertilized egg into the fallopian tube?

Which of the following will show positive Fehling's test?
(A) Propanone
(B) Propanal
(C) Benzaldehyde
(D) p-Methoxy benzaldehyde (E) 2-Phenyl ethanal
Choose the correct answer from the options given below :

Identify the final product \((C)\) in the reaction given below:
\(CH _3 CH _2 I + NaCN \rightarrow A \rightarrow\) (Partial hydrolysis \(\left./ OH ^{-}\right) \rightarrow b + NaOH + Br _2 \rightarrow C ?\)

Osmotic pressure measurements are less accurate and difficult to carry out. Therefore, this method is not useful for measuring molecular weights. But it is used to find out molecular weights of polymers eg. plastics, proteins and starch having many monomer units. Knowing the value of osmotic pressure of a given solution, molecular weight of the solute can be calculated using Van't Hoff equation.
In a nearly saturated solution, which of the following statements are correct?
A. If dissolution process is endothermic, solubility increases with increase in temperature.
B. If dissolution process is endothermic, solubility decreases with increase in temperature.
C. If dissolution process is exothermic, solubility decreases with increase in temperature.
D. If dissolution process is exothermic, solubility increases with increase in temperature.
Choose the correct answer from the options given below:

Read the following paragraph carefully and answer the given questions.
In the year 1963 the two enzymes responsible for restricting the growth of bacteriophage in E. coli were isolated. The first restriction endonuclease - Hind II, whose functioning depended on a specific DNA nucleotide sequence was characterized five years later. It was found that Hind II always cut DNA molecules at a particular point by recognizing a specific sequence of six base pairs. This specific base sequence is known as the recognition sequence for Hind II. Besides Hind II, today we know more than 900 restriction enzymes that have been isolated from over 230 strains of bacteria, each of which recognize different recognition sequences.
When DNA from different sources is cut by the same restriction enzymes, the resultant DNA fragments have the :