For (i) \(I^-\) (ii) \(Cl^-\)(iii) \(Br^-\), the usual increasing order of nucleophilicities would be

Match List - I with List - II.

List - I	List - II
(A) Kaolinite	(I) \(FeCO _3\)
(B) Siderite	(II) \(ZnCO _3\)
(C) Malachite	(III) \(\left[ Al _2( OH )_4 Si _2 O_5\right]\)
(D) Colamine	(IV) \(CuCO _3 \cdot Cu ( OH )_2\)

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Match List-I (Name) with List-II (Solution)

List-I (Name)	List-II (Solution)
(A) Isotonic solution	(I) A solution with lower osmotic pressure than that of other solution
(B) Hypotonic solution	(II) A solution with higher osmotic pressure than that of other solution
(C) Ideal solution	(III) Different solutions with equal osmotic pressure
(D) Hypertonic solution	(IV) A solution that obeys Raoult's law at all temperatures and concentration

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Decreasing order of freezing point of 0.1 M aqueous solution of following will be :
(A) \(\text{K}_4\text{[Fe(CN)}_6\text{]}\)
(B) \(\text{K}_2\text{SO}_4\)
(C) \(\text{NH}_2\text{CONH}_2\)
(D) \(\text{AlCl}_3\)
(E) \(\text{HCl}\)
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Which of the following statements is NOT correct regarding the catalytic ability of transition metals?

Match List - I with List - II

List - I	List - II
(A) \([Ni(CN)_4]^{2-}\)	(I) \(EDTA^{4-}\)
(B) bidentate	(II) paramagnetic
(C) chelate ligand	(III) diamagnetic
(D) \([Ni(Cl)_4]^{2-}\)	(IV) oxalate

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What will be the product formed when crude metal of Zirconium is heated in an evacuated vessel with iodine?

Which of the following is male sex hormone ?

The radius of a spherical ball is increasing at the rate of 1 m/sec. At the radius equal to 3m, the volume of the ball is increasing at the rate given by :

Read the passage carefully and give the answers to the question :
Does the number of species in a community really matter to the functioning of the ecosystem? This is a question for which ecologists have not been able to give a definitive answer. For many decades, ecologists believed that communities with more species, generally, tend to be more stable than those with less species. According to the International Union for Conservation of Nature and Natural Resources (IUCN) (2004), the total number of plant and animal species described so far is more than 1.5 million.
Among the vertebrates, which of the following is the most species-rich group ?

A reaction is second order with respect to a reactant. If the concentration of the reactant is increased by 1.5 times, the
rate of the reaction

Monochromatic light of wavelength 600 nm is incident from air on to water surface. The frequency of refracted light is

The wavelength of the first spectral line of an element is 5893 Å. The first excitation energy is :