The increasing basicity order of the following compounds is :

Which of the following compounds is not aromatic ?

The tests performed on compound X and their inferences are :

	Test	Inference
(a)	2, 4 - DNP test	Coloured precipitate
(b)	Idoform test	Yellow precipitate
(c)	Azo-dye test	No dye formation

Compound 'X' is :

The products formed in the reaction of cumene with O₂ followed by treatment with dil. HCl are :

The correct sequence of amino acids present in the tripeptide given below is :

Consider the following reversible chemical reactions :



The relation between K₁ and K₂ is :

The major product of the following reaction is :

The major product obtained in the following reaction is :

The major product of the following reaction is :

The major product in the following reaction is :

If the standard electrode potential for a cell is 2 V at 300 K, the equilibrium constant (K) for the reaction

Zn(s) + Cu²⁺ (aq) $$\rightleftharpoons$$ Zn²⁺(aq) + Cu(s)

at 300 K is approximately,

(R = 8 JK^$$-$$1mol^$$-$$1, F = 96000 C mol^$$-$$1)

Homoleptic octahedral complexes of a metal ion 'M³⁺' with three monodenate ligands L₁, L₂ and L₃ adsorb wavelenths in the region of green, blue and red respectively. The increasing order of the ligands strength is :

A solution containing 62 g ethylene glycol in 250 g water is cooled to $$-$$ 10^oC. If K_f for water is 1.86 K kg mol^$$-$$1 , the amount of water (in g) separated as ice is :

The transition element that has lowest enthalpy of atomisation, is :

When the first electron gain enthalpy $$\left( {{\Delta _{eg}}H} \right)$$ of oxygen is $$-$$ 141 kJ/mol, its second electron gain enthalpy is :

In which of the following process, the bond order has increased and paramagnetic character has charged to diamagnetic ?

Which of the following combination of statements is true regarding the interpretation of the atomic orbitals ?

(a) An electron in an orbital of high angular momentum stays away from the nucleus than an electron in the orbital of lower angular momentum.

(b) For a given value of the principal quantum number, the size of the orbit is inversely proportional to the azimuthal quantum number.

(c) According to wave mechanics, the ground state angular momentum is equal to $${h \over {2\pi }}$$.

(d) The plot of $$\psi $$ vs r for various azimuthal quantum numbers, shows peak shifting towards higher r value.

For the reaction, 2A + B $$ \to $$ products, when the concentrations of A and B both were doubled, the rate of the reaction increased from 0.3 mol L^$$-$$1s^$$-$$1 to 2.4 mol L^$$-$$1s^$$-$$1. When the concentration of A alone is doubled, the rate increased from 0.3 mol L^$$-$$1s^$$-$$1 to 0.6 mol L^$$-$$1s^$$-$$1.

The pH of rain water, is approximately :

The complex that has highest crystal field splitting energy ($$\Delta $$), is :

The correct match between Item I and Item II is :

Item - I		Item - II
(A)	Benzaldehyde	(P)	Mobile phase
(B)	Alumina	(Q)	Adsorbent
(C)	Acetonitrile	(R)	Adsorbate

For the following reaction, in the mass of water produced from 445 g of C₅₇H₁₁₀O₆ is :

2C₅₇H₁₁₀O₆(s) + 163 O₂(g) $$ \to $$ 114 CO₂(g) + 110 H₂O(l)

The entropy change associated with the conversion of 1 kg of ice at 273 K to water vapours at 383 K is :

(Specific heat of water liquid and water vapour are 4.2 kJ K^$$-$$1 kg^$$-$$1 and 2.0 kJ K^$$-$$1 kg^$$-$$1; heat of liquid fusion and vapourisation of water are 334 kJ^$$-$$1 and 2491 kJ kg^$$-$$1, respectively). (log 273 = 2.436, log 373 = 2.572, log 383 = 2.583)