Each of the following pairs of words hides a number, based on which you can arrange them in ascending order. Pick the correct answer :
I. Cloth reel
J. Silent wonder 
K. Good tone 
L. Bronze rod

Which of the following values is same as ?

A 12 m × 4 m rectangular roof is resting on four 4 m tall thin poles. Sunlight falls on the roof at an angle of 45° from the east, creating a shadow on the ground. What will be the area of the shadow?

If Here a, b, c and d are digits.Then a + b =

The maximum number of points formed by intersection of all pairs of diagonals of convex octagon is

Find the height of a box of base area 24 cm × 48 cm, in which the longest stick that can be kept is 56 cm long

The product of the perimeter of a triangle, the radius of its in-circle, and a number gives the area of the triangle. The number is

An infinite row of boxes is arranged. Each box has half the volume of the previous box. If the largest box has a volume of 20 cc, what is the total volume of all the boxes?

Find the missing element based on the given pattern

By reading the accompanying graph, deter-1 mine the INCORRECT statement out of the following

If you change only one observation from a set of 10 observations, which of the following will definitely change?

A man starts his journey at 0100 Hrs. local time to reach another country at 0900 Hrs local time on the same date. He starts a return journey on the same night at 2100 Hrs. local time to his original place, taking the same time to travel back. If the time zone of his country of visit lags by 10 hours, the duration for which the man was away from his place is

Let r be a positive number satisfying

A float is drifting in a river, 10 m downstream of a boat that can be rowed at a speed of 10 m/minute in still water. If the boat is rowed downstream, the time taken to catch up with the float

ABC is a right angled triangle inscribed in a semicircle. Smaller semicircles are drawn on sides BC and AC. If the area of the triangle is a, what is the total area of the shaded lumes?

An ant can lift another ant of its size whereas an elephant cannot lift another elephant of its size, because

Consider a series of letters placed in the following way :
U...G...C...C...S...I...R 
Each letter moves one step to its right and the extreme right letter takes the first position, completing one operation. After which of the following numbers of operations do the Cs not sit side by side?

An inclined plane rests against a horizontal cylinder of radius R. If the plane makes an angle of 30° with the ground, the point of contact of the plane with the cylinder is at a height of

What is the maximum number of parallel, non-overlapping cricket pitches (length 24 m, width 3 m) that can be laid in a field of diameter 140 m, if the boundary is required to be at least 60 m from the centre of any pitch ? 

In a fast moving car with open windows, the driver feels a continuous incoming breeze. The pressure inside the car, however, does not keep increasing because

The biological functions of carbonic anhy-drase and carboxypeptidase A, respectively, are

Fe-Nporphyrin bond distances in the deoxy- and oxy-haemoglobin, respectively are

he binding modes of NO in 18 electron compounds [Co(CO)₃(NO)] and , respectively are

The role of copper salt as co-catalyst in Wacker process is

For typical Fischer and Schrock carbenes, consider the following statement
1. Oxidation state of metal is low in Fischer carbene and high in Schrock carbene.
2. Auxiliary ligands are p-acceptor in Fischer carbene and non-p-acceptor in Schrock carbene.
3. Substituents on carbene carbon are non-p-donor in Fischer carbene and p-donor in Schrock carbene.
4. Carbene carbon is electrophilic in Fischer carbene and nucleophilic in Schrock carbene.
The correct statements are

Consider the following statements regarding the diffusion current at dropping mercury electrode.
1. It does not depend on mercury flow rate.
2. It depends on drop time.
3. It depends on temperature.
Correct statement(s) is/are

Q value for the reaction ¹³N(n, p)¹³C is 3.236 MeV. The threshold energy (in MeV) for the reaction ¹³C(p, n)¹³N is

The ¹¹⁹Sn NMR chemical shift (approximately in ppm) corresponding to (relative to Me₄Sn) is

All forms of phosphorus upon melting, exist as

For the oxidation state(s) of sulphur atoms in S₂O, consider the following
1. –2 and +4
2. 0 and +2
3. +4 and 0
The correct answer(s) is/are

The correct set of pseudohalide anions is

In transition metal phoshine (M–PR₃) complexes, the back-bonding involves donation of electrons from

The refluxing of RhCl₃.3H₂O with an excess of PPh₃ in ethanol gives a complex A. Complex A and the valence electron count on rhodium are, respectively

The B-hydrogen elimination will be facile in

The reaction 
 follows a/an

Correct statement on the effect of addition of aq. HCl on the equilibrium is

The compound that exhibits sharp bands at 3300 and 2150 cm^–1 in the IR spectrum is

The ¹H NMR spectrum of a dilute solution of a mixture of acetone and dichloromethane in CDCl₃ exhibits two singlets of 1 : 1 intensity. Molar ratio of acetone to dichloromethane in the solution is

Intense band generally observed for a carbonyl group in the IR specturm is due to

The compound that gives precipitate on warming with aqueous AgNO₃ is

Following reaction goes through

The most stable conformation for the following compound is

The major product formed in the following reaction is

The correct relation between the following compounds is

The correct order of heat of hydrogenation for the following compounds is

Among the following, the correct statement (s) about ribose is (are)
1. On reduction with NaBH₄ it gives optically inactive product.
2. On reaction with methanolic HCl it gives a furanoside.
3. On reaction with Br₂–CaCO₃–water it gives optically inactive product.
4. It gives positive Tollen’s test.

Biogenetic precursors for the natural product umbelliferone among the following are

1. L-tryptophan    2. cinnamic acid
3. L-methionine    4. L-phenylalanine

Number of signals in the ¹³C{H} NMR spectrum of (R)-4-methylpentan-2-ol are

The major product formed in the following reaction is

The major product formed in the following reaction is

The major product formed in the following reaction is

The magnitude of the stability constants for K⁺ ion complexes of the following supra-molecular hosts follows the order

Antitubercular drug(s) among the following is (are)
1. Salbutamol     2. Ethambutanol 
3. Isoniazid        4. Diazepam

A particle is in a one-dimensional box with a potential V₀ inside the box and infinite outside. An energy state corresponding to n = 0 (n : quantum number) is not allowed because

An eigenstate of energy satisfies In the presence of an extra constant potential V₀

The intensity of a light beam decreases by 50% when it passes through a sample of 1.0 cm path length. The percentage of transmission of the light passing through the same sample, but of 3.0 cm path length, would be

The electric-dipole allowed transition among the following is

The product  is the two-fold rotation axis around the x-axis and  is the xy mirror plane) is

The simplest ground-state VB wave function of a diatomic molecule like HCl is written as  = _H (1s, 1) _Cl (3p_z, 2) + B where B stands for

Heat capacity of a species is independent of temperature if it is

In a chemical reaction :  xenon gas is added at constant volume. The equilibrium

The temperature-dependence of a reaction is give by
k = AT² exp (–E₀/RT)
The activation energy (E_a) of the reaction is give by

For a reaction, 2A + B → 3Z, if the rate of consumption of A is 2 × 10^–4 mol dm^–3 s^–1, the rate of formation of Z (in mol dm^–3 s^–1) will be

Dominant contribution to the escaping tendency of a charged particle with uniform concentration in a phase, depends on

The intrinsic viscosity depends on the molar mass as The empirical constants K and a are dependent on

The correct  for the cell reaction involving steps

The lowest energy-state of an atom with electronic configuration ns¹ np¹ has the term symbol

Energy of interaction of colloidal particles as a function of distance of separation can be identified as (1) van der Waals, (2) double layer, (3) van der Waals and double layer. The correct order of interactions in the figure corresponding to curves (a), (b) and (c) respectively, is

The packing factor (PF) and number of atomic sites per unit cell (N) of an FCC crystal system are

Differential pulse polarography (DPP) is more sensitive than D.C. Polarography (DCP). Consider following reasons for it
1. Non-faradic current is less in DPP in comparison to DCP.
2. Non-faradic current is more in DPP in comparison to DCP.
3. Polarogram of DPP is of different shape than that of DCP.
Correct reasons(s) is/are

Considering the following parameters with reference to the fluorescence of a solution :
1. Molar absorptivity of fluorescent molecule.
2. Intensity of light source used for excitation.
3. Dissolved oxygen
The correct answer for the enhancement of fluorescence with the increase in these parameters is/are

The geometric cross section of ¹²⁵Sn (in bam) is nearly

Match column A (coupling reactions) with column B (reagents)
 

	Column A		Column B
a b c d	Suzuki coupling Heck coupling Sonogashira coupling Negeshi coupling	i. ii. iii. iv. v.	CH2=CHCO2CH3 RH(OH)2 PhCO(CH2)3Znl HC=CR SnR4

The correct match is

The oxoacid of phosphorus having P atoms in +4, +3 and +4 oxidation states respectively, is

The geometries of [Br₃]⁺ and [I₅]⁺ respectively, are

According to Wade’s theory the anion [B₁₂H₁₂]^2– adopts

Considering the intert pair effect on lead, the most probable structure of 
PbR₂ [R = 2, 6-C₆H₃ (2, 6 –Pr₂C₆H₃)₂] is

The reaction of SbCl₃ with 3 equivalents of EtMgBr yields compound X. Two equivalents of SbI₃ react with one equivalent of X to give Y. In the solid state, Y has a 1D-polymeric structure in which each Sb is in a square pyramidal environment. Compounds X and Y respectively, are

Match the complexes given in column I with the electronic transitions (mainly responsible for their colours) listed in column II

The correct answer is

The following statements are given regarding the agostic interaction C—H···Ir observed in [Ir(Ph₃P)₃Cl].
1. Upfield shift of C—H proton in 1H NMR spectrum.
2. increased acid character of C—H.
3. v_C–H in IR spectrum shifts to higher wavenumber.
The correct answer is/are

Amongst the following :
1. 
2. 
3. 
4. 
The compounds with most shielded and deshielded Cp protons respectively, are

Total number of vertices in metal clusters [Ru₆(C)(CO)₁₇], [Os5(C)(CO)₁₅] and [Ru₅(C)(CO)₁₆] are 6, 5 and 5 respectively. The predicted structures of these complexes, respectively, are

Among the complexes,
1. K₄[Cr(CN)₆]
2. K₄[Fe(CN)₆]
3. K₃[Co(CN)₆]
4. K₄[Mn(CN)₆]
Jahn-Teller distortion is expected in

The reductive elimination of Ar—R (coupled product) from A is facile when

The total number of metal ions and the number of coordinated imidazole units of histidine in the active site of oxy-hemocyanin, respectively, are

Match the action of H₂O₂ in aqueous medium given in column A with the oxidation/ reduction listed in column B :

The correct answer is

The reduced form of a metal ion complex is NMR active. On oxidation, the complex gives an EPR signal with g_|| ≈ 2.2 and  ≈ 2.0. Mossbauer spectroscopy cannot characterise the metal complex. The M is

The least probable product from A on reductive elimination is

Water plays different roles in the following reactions
1. 2H₂O + Ca → Ca²⁺ + 2OH^– + H₂
2. nH₂O + Cl → [Cl(H₂O)_n]^–
3. 6H₂O Mg²⁺ → [Mg(H₂O)₆]²⁺ 
4. 2H₂O + 2F₂ → 4HF + O₂
The correct role of water in each reaction is

With respect to   bonding in Pt–III in the structure given below, which of the following represent the correct bonding?

The complex [Fe(phen)₂(NCS)₂] (phen = 1, 10-phenanthroline) shows spin cross-over behaviour. CFSE and µ_eff at 250 and 150 K respectively, are

Consider the following statements with respect to uranium
1. UO₂²⁺ disproportionates more easily than UO₂²⁺
2. U₃O₈ is its most stable oxide of U
3. Coordination number of U in [UO₂ (NO₃)₂ (H₂O)₂].4H₂O is six
4. UO₂²⁺ is linearThe correct set of statements is

For the above conversion, which of the following statements are correct ?
1. CO₂ combines with Ni(PR₃)₂ (1, 5-cyclo-octadiene)
2. Insertion of CO₂ occurs
3. Insertion of Et — Et takes place 
The correct answer is

Consider the following statements for (NH₄)₂ [Ce(NO₃)₆] (Z)
1. Coordination number of Ce is 12
2. Z is paramagnetic
3. Z is an oxidising agent
4. Reaction of Ph₃PO with Z gives a complex having coordination number 10 for Ce.
The correct statements are

The major product formed in the following reaction sequnce is

The major products A and B in the following reaction sequence are

The major product formed in the following reaction is

The correct statement about the following reaction is

The major product formed in the following reaction is

The major products A and B formed in the following reactions are