Match List-I and List-II

List-I	List-II
A. Phosphine	I. Catches fire in air
B. Chlorine water	II. Smoke screen
C. White phosphorus	III. Crown structure
D. Sulphur monoclinic and rhombic	IV. Bleaching agent

Choose the correct answer from the options given below:

The decreasing order of basicity of the following amines in aqueous solution is
(A) Ethylamine
(B) N-Ethylethanamine
(C) N,N-Diethylethanamine
(D) Benzamine
Choose the correct answer from the options given below:

Among the following statements on the nitration of aromatic compounds, the false one is:

Arrange the following complexes in increasing order of their magnetic mome
(A) \(\left[\mathrm{NiCl}_4\right]^{2-}\)
(B) \(\left[\mathrm{Fe}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{2+}\)
(C) \(\left[\mathrm{Cr}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{3+}\)
(D) \(\left[\mathrm{Co}\left(\mathrm{C}_2 \mathrm{O}_4\right)_3\right]^{3-}\)
Choose the correct answer from the options given below:

The order of a certain reaction with respect to Cl\(^-\) ion is - 1.
The Cl\(^-\) is

Which of the following statements is incorrect with respect to the use of a catalyst in the reversible reaction?

Interstitial compounds are formed when small atoms like \(H , C\), or N are trapped in the crystal lattice of metal. Which of the following statements are true about the interstitial compounds?
(A) Interstitial compounds have higher melting points than the pure metals.
(B) Interstitial compounds are very soft.
(C) Interstitial compounds are very reactive.
(D) Interstitial compounds retain metallic conductivity.
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A nucleus with mass number 240 and binding energy per nucleon 7.6 MeV splits into two fragments each of mass number 120 with binding energy per nucleon 8.5 MeV. The amount of energy released in this process will be :

Read the passage carefully and answer the given questions.
DNA Fingerprinting
Polymorphism in DNA sequence is the basis of genetic mapping of the human genome as well as of DNA fingerprinting. DNA fingerprinting involves identification of differences in some specific regions in the DNA sequence called repetitive DNA. It works on the principle of polymorphisms in DNA sequences. The repetitive DNA are separated from bulk genomic DNA. The bulk DNA forms a major peak and the other small peaks are referred to as satellite DNA. These repetitive/satellite DNA sequences show a high degree of polymorphisms and form the basis of DNA fingerprinting.
DNA polymorphism forms the basis of

Which of the following combination of hormones are secreted during pregnancy in humans?
(A) hCG
(B) LH
(C) hPL
(D) Relaxin
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In the electrolytic refining of silver :

For a heavily doped n-type semiconductor, Fermi level lies:

The magnetic field in a plane electromagnetic wave is given by \( B_y = 2 \times 10^{-7} \sin(0.5 \times 10^3 x + 1.57 \times 10^{11} t) \text{ T} \). The frequency of the wave is