Answer the question on basis of passage given below :
Transition metals form a large number of complexes or coordination compounds in which the metal atoms are bound to a number of anions or neutral molecules. The valence bond theory explain the formation, magnetic behaviour and geometrical shapes while the crystal field theory explains the effect of different crystal fields on the degeneracy of d-orbitals energies of the central metal atom/ion. This provides for the quantitative estimation of orbital separation energies, magnetic moments and spectral and stability parameters.
The compound \(\left[ Pt \left( NH _3\right)_2 Cl _2\right]\) exhibits

Match List I with List II

LIST I	LIST II
A. Pain killers	I. Antipyretics
B. Treatment of infections	II. Analgesics
C. Reducing fever	III. Antibiotics
D. Treatment of depression	IV. Tranquilizers

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Read the passage carefully and answer:
Organic compounds derived from NH3 by replacing one or more H-atoms with alkyl or aryl groups will form primary, secondary and tertiary amines. The common methods which include their preparations are reduction of nitro group, amide group and nitrile group, Gabriel phthalimide synthesis and ammonolysis of alkyl halides. Amines are basic in nature due to the presence of a lone pair of electrons on the nitrogen atom. Important chemical properties of amines include acylation, alkylation and their interaction with nitrous acid. There are various tests which can distinguish different types of amines from each other, for e.g. carbylamine test, Hinsberg's test, coupling reaction etc. Another important class of compounds which can be derived from primary amines is azo compounds. These compounds are intensely colored and widely used as dyes in textile, leather and food industries.
The final product of the following reaction is:
\(C _6 H _5 NH _2 \xrightarrow[\text { (iii) } NaNO _2 / Cu , \Delta]{\text { (i) } HNO _2}\) (ii) \(HBF _4\) ?

Which of the following is more reliable ?

Which of the following represents Fehling solution B?

Arrange the following in increasing order of their molarity when their equal weights are dissolved in 250 mL of water.
(A) glucose \(\left(180 g mol ^{-1}\right)\)
(B) sodium carbonate (106 g mol-1)
(C) sodium hydroxide \(\left(40 g mol ^{-1}\right)\)
(D) acetic acid \(\left(60 g mol ^{-1}\right)\)
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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
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If x + y \(\le\) 3, x \(\ge\) 0, y \(\ge\) 0 are constraints, then for z = x - y, Max z is:

A metallic wire of resistance \( R \) and resistivity \( \rho \) is cut into six equal parts. Now each part is stretched to six times its length. The new resistance and resistivity of each part will be :

\(\int \frac{\left(x^4-x\right)^{1 / 4}}{x^5} d x\) is equal to

In a reaction A and B reacts to form product. The initial rate of reaction was determined using different initial concentration of A and B.

A/molL-1	0.10	0.10	0.20
\(B / mol L ^{-1}\)	0.30	0.10	0.30
\(r_o / mol L ^{-1} s^{-1}\)	\(6.81 \times 10^{-4}\)	\(2.27 \times 10^{-4}\)	\(13.62 \times 10^{-4}\)

What is the initial rate of reaction (\(r_o\)) when critical concentration of A and B is \(0.50\ mol/L\) and \(0.50\ mol/L\) respectively.

Daily life phenomena based on scattering of light are
(A) Blue colour of sky
(B) Clouds appearing white
(C) Twinkling of stars
(D) Danger signals being red
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For the function \(f(x)=2 x^3-3 x^2-12 x+5\), the difference of maximum and minimum value of \(f(x)\) is