The nitration of chlorobenzene gives major product as :

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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.
Among the following, water-soluble vitamin is

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.

Minor product in above reaction is:

Which among the following metals shows 6 secondary valencies ?
(A) 1 mole of \(PdCl _2 \cdot 4 NH _3\) reacts with excess of \(AgNO _3\) to give 2 moles of AgCl precipitated
(B) 1 mole of \(NiCl _2 \cdot 6 H _2 O\) reacts with excess of \(AgNO _3\) to give 2 moles of AgCl precipitated
(C) 1 mole of \(PtCl _4 \cdot 2 HCl\) does not give reaction with \(AgNO _3\)
(D) 1 mole of \(CoCl _3 \cdot 4 NH _3\) reacts with excess of \(AgNO _3\) to give 1 mole of AgCl precipitated
(E) 1 mole of \(PtCl _2 \cdot 2 NH _3\) does not give reaction with \(AgNO _3\)
Choose the correct answer from the options given below :

Answer the question on the basis of passage given below :
Adsorption is a surface phenomenon which can be expressed by means of an empirical relationship know as Freundlich Adsorption isotherm. The relationship given by \(\frac{x}{m} = Kp^{\frac{1}{n}}\ (n > 1)\)
x = Mass of the gas adsorbed
m = Mass of adsorbent
p = Pressure at which adsorption takes place
K and n are constant

Gas	Critical Temperature (in K)
\(\text{C}_2\text{H}_6\)	210
\(\text{SO}_2\)	630
\(\text{Cl}_2\)	243
\(\text{H}_2\)	33

On the basis of given data which one of the following gases shows maximum adsorption on a definite amount of charcoal?

Equilibrium constant is \(2 \times 10^{37}\) at 298 K for the reaction:
\(Zn(s) + Cu^{2+}(aq) \rightarrow Zn^{2+}(aq) + Cu(s)\).
Predict the spontaneity of the cell and calculate \(E_{\text{cell}}\).
[Given: \(\text{log } 2 = 0.3010\)]

Question 4 (IUPAC Name of Freon 12):
The correct IUPAC name of Freon 12 is

Choose the correct statements:
A. Diamagnetic substances have non zero resultant magnetic moment.
B. The magnetisation of a paramagnetic material is inversely proportional to the absolute temperature T.
C. At high enough temperature, a ferromagnet becomes a paramagnet.
D. Magnetic permeability of ferromagnets, \(u \gg 1\)
E. Susceptibility of Diamagnetic, \(X \gg 1\)

The points on the ellipse \(\frac{x^2}{9}+\frac{y^2}{25}=1\) at which the tangents are parallel to the \(x\)-axis are:

A small amount of \(CaF_2\) is added in electrolytic reduction of \(Al_2O_3\) in fused cryolite :
A. To decrease the rate of oxidation of carbon at anode
B. To act as catalyst
C. To make fused mixture conducting
D. To lower the fusion temperature of melt
Choose the correct answer from the options given below :

To demonstrate the phenomenon of interference, we require two sources, which emit radiation of

The secondary ecological succession begins in an area, where :

Propene on addition with bromine in CCl4 gives