| 2024-09-27 | A catalyst.... | 0:00 | 1 | |
|
| 2024-09-27 | When MnO2 is fused with KOH, a coloured compound is formed, the product and its color is.... | 0:00 | 0 | |
|
| 2024-09-27 | Which one of the following oxides is neutral?.... | 0:00 | 2 | |
|
| 2024-09-27 | For the elementary reaction, M→Nthe rate of disappearance of M increases by a factor of 8 u.... | 0:00 | 3 | |
|
| 2024-09-27 | Which of the following pairs is expected to exhibit the same color in solution?.... | 0:00 | 1 | |
|
| 2024-09-27 | In a radioactive decay chain reaction,T90230h nucleus decays into84214Po  nucleus. The rati.... | 0:00 | 1 | |
|
| 2024-09-27 | The total charge (coulombs) required for complete electrolysis is.... | 0:00 | 0 | |
|
| 2024-09-27 | Arrange the following as indicated. CO2, N2O5, SiO2, SO3 in the order of increasing acidic chara.... | 0:00 | 3 | |
|
| 2024-09-27 | A magnetic fieldB=B0y/ak^ is acting into the paper in the+z direction.B0 anda are positive const.... | 0:00 | 1 | |
|
| 2024-09-27 | _____ is most acidic. (Ethane, Ethene, Ethyne).... | 0:00 | 0 | |
|
| 2024-09-27 | Consider an electrochemical cell A(s)Am+(aq,2M)∣B2n+(aq,1M/B(s). The value of ΔH͵.... | 0:00 | 1 | |
|
| 2024-09-27 | A parallel plate capacitor of plate area A and plate separation d is charged to potential differ.... | 0:00 | 0 | |
|
| 2024-09-27 | The compound that is not a Lewis acid is.... | 0:00 | 1 | |
|
| 2024-09-27 | 1.22 gC6H3COOH is added into two solvents and data of ΔTb anc Kb are given as :(i) ln1.... | 0:00 | 0 | |
|
| 2024-09-27 | For the circuit shown, which of the following statements is true?\n\n.... | 0:00 | 3 | |
|
| 2024-09-27 | Bohr's model can explain.... | 0:00 | 1 | |
|
| 2024-09-27 | An organic compound E(C5H8) on hydrogenation gives compound F(C5H12). Compound E ozonolysis give.... | 0:00 | 4 | |
|
| 2024-09-27 | A container of fixed volume has a mixture of one mole of hydrogen and one mole of helium in equi.... | 0:00 | 1 | |
|
| 2024-09-27 | A 100 W bulb B1, and two 60 W bulbs B2 and B3, are connected to a 250 V source, as shown in the .... | 0:00 | 3 | |
|
| 2024-09-27 | For the following reactionCH4(g)+CI2(g)→lightCH3CI(g)+HCl(g) the correct statement is.... | 0:00 | 0 | |
|
| 2024-09-27 | Define the following terms with a suitable example of each :\nAntiseptics.... | 0:00 | 1 | |
|
| 2024-09-27 | A non-conducting solid sphere of radius R is uniformly charged. The magnitude of the electric fi.... | 0:00 | 1 | |
|
| 2024-09-27 | Which of the following halides is least stable and has doubtful existence?.... | 0:00 | 0 | |
|
| 2024-09-27 | Write the preparation of the following:\\(\\mathrm{K}_2 \\mathrm{MnO}_4\\) from \\(\\mathrm{MnO}.... | 0:00 | 3 | |
|
| 2024-09-27 | Account for the following :(i) Tendency to show -3 oxidation state decreases from \\(\\mathrm{N}.... | 0:00 | 2 | |
|
| 2024-09-27 | Statement-I: Boron always forms covalent bonds.Statement-II: The small size of B3+ favours forma.... | 0:00 | 4 | |
|
| 2024-09-27 | How can you convert the following?Methanal to ethanol.... | 0:00 | 4 | |
|
| 2024-09-27 | Using integration, find the area of the region bounded by lines \\(x-y+1=0, x=-2, x=3\\) a.... | 0:00 | 3 | |
|
| 2024-09-27 | For the reaction, PCl5(g)⇌PCl3(g)+Cl2(g) the forward reaction at constant temperature is favored.... | 0:00 | 5 | |
|
| 2024-09-27 | How will you convert ethanal into:(a) But-2-enal(b) Ethanol.... | 0:00 | 1 | |
|
| 2024-09-27 | A point source in air is kept \\(24 cm\\) in front of a concave spherical glass surface \\(\\lef.... | 0:00 | 3 | |
|
| 2024-09-27 | State true or False\nIn a photoelectric emission process, the maximum energy of the photoelectro.... | 0:00 | 3 | |
|
| 2024-09-27 | A biochemical reaction was carried out in the absence of enzyme and the rate of reaction was fou.... | 0:00 | 0 | |
|
| 2024-09-27 | Define wavefront of a travelling wave. Using Huygens principle, obtain the law of refraction at .... | 0:00 | 2 | |
|
| 2024-09-27 | Two parallel beams of light P and Q (separation d) containing radiations of wavelengths4000 .... | 0:00 | 0 | |
|
| 2024-09-27 | Let \\(\\vec{a}\\) and \\(\\vec{b}\\) be two non-collinear unit vectors. If \\(\\vec{u}=\\vec{a}.... | 0:00 | 1 | |
|
| 2024-09-27 | Hardening of leather in tanning industry is based on:.... | 0:00 | 1 | |
|
| 2024-09-27 | A body of mass \\(m\\) moving with a velocity in the x-direction collides with another body of m.... | 0:00 | 2 | |
|
| 2024-09-27 | Determine the values ofx  for which the following function fails to be continuous or differ.... | 0:00 | 2 | |
|
| 2024-09-27 | Value of Henry's constant \\(K_H\\) : .... | 0:00 | 0 | |
|
| 2024-09-27 | Which of the following reactions will NOT give primary amine as the product?.... | 0:00 | 0 | |
|
| 2024-09-27 | Find the shortest distance of the point(0,c) from the parabola y=x2, where 0≤c≤5..... | 0:00 | 3 | |
|
| 2024-09-27 | The oxidation state of \\(Fe\\) in \\(\\left[ Fe ( CO )_5\\right]\\) is .... | 0:00 | 0 | |
|
| 2024-09-27 | If the electric flux entering and leaving a closed surface in air are ϕ1 and b.... | 0:00 | 2 | |
|
| 2024-09-27 | Write the chemical reactions associated with the ‘borax bead test of cobalt (II) oxide..... | 0:00 | 0 | |
|
| 2024-09-27 | Write the role of coordination compounds with an example in each of the following :\n Biolo.... | 0:00 | 39 | |
|
| 2024-09-27 | Photons of energies 1 eV and 2 eV are successively incident on a metallic surface of work functi.... | 0:00 | 1 | |
|
| 2024-09-27 | How will you bring about the following conversions?\"4-nitrobenzaldehyde from benzenc\".... | 0:00 | 1 | |
|
| 2024-09-27 | Clemmensen Reduction of aldelydes and ketonic carbonyl groups into methylene group is effe.... | 0:00 | 1 | |
|
| 2024-09-27 | Account for the following :Actinoids show a wide range of oxidation states..... | 0:00 | 1 | |
|
| 2024-09-27 | Correct option(s) for the following sequence of reaction is are\n.... | 0:00 | 0 | |
|
| 2024-09-27 | Define rate constant and give the mathematical relation between rate constant and half-life peri.... | 0:00 | 0 | |
|
| 2024-09-27 | The unit of rate constant and rate of reaction are identical for a :.... | 0:00 | 6 | |
|
| 2024-09-27 | Both [Ni(CO)4] and [Ni(CN)4]2– are diamagnetic. The hybridisations of nickel in these comp.... | 0:00 | 0 | |
|
| 2024-09-27 | There exists a ∆ABC satisfying the conditions.... | 0:00 | 2 | |
|
| 2024-09-27 | Write the hybridisation, shape and magnetic character of CoF63-. [Atomic number of Co=27 ].... | 0:00 | 4 | |
|
| 2024-09-27 | Draw the structure of P4O10..... | 0:00 | 5 | |
|
| 2024-09-27 | Outline a synthesis of \\(\\mathrm{p}\\)-bromonitrobenzene from benzene in two steps..... | 0:00 | 0 | |
|
| 2024-09-27 | Answer the following :Arrange the following hydrides of Group 16 elements in the decreasing orde.... | 0:00 | 2 | |
|
| 2024-09-27 | The amount of water produced (in g) in the oxidation of I mole of rhombic sulphur by cone. HNO3 .... | 0:00 | 0 | |
|
| 2024-09-27 | State the equation for the preparation of following compound. Chlorobenzene from aniline (in 2 s.... | 0:00 | 1 | |
|
| 2024-09-27 | Name the temperature above which micelle formation takes place..... | 0:00 | 4 | |
|
| 2024-09-27 | The plot of logKf versus 1T for a reversible reaction A(g)⇌P(g) is shown.\nPre-exponential facto.... | 0:00 | 2 | |
|
| 2024-09-27 | How will you bring about the following conversions? “Benzamide from nitrobenzene”.... | 0:00 | 3 | |
|
| 2024-09-27 | On what factor does the wavelength of the light emitted by an LED depend?.... | 0:00 | 6 | |
|
| 2024-09-27 | The vapour pressure of pure benzene at a certain temperature is 640 mmHg. A non-volatile, non-el.... | 0:00 | 1 | |
|
| 2024-09-27 | The order of reactivity of phenyl magnesium bromide with the following compounds is\n.... | 0:00 | 0 | |
|
| 2024-09-27 | Prove that sin2α+sin2β-sin2γ=2sinαsinβsinγ, where α+&bet.... | 0:00 | 0 | |
|
| 2024-09-27 | If the freering point of a 0.01 molal aqueous solution of a cobalt (III) chloride-ammonia comple.... | 0:00 | 2 | |
|
| 2024-09-27 | Which of the following has the highest nucleophilicity?.... | 0:00 | 0 | |
|
| 2024-09-27 | Benzene diazonium chloride on reaction with phenol in weakly basic medium gives.... | 0:00 | 1 | |
|
| 2024-09-27 | The freezing point of the solution M is.... | 0:00 | 1 | |
|
| 2024-09-27 | Geometrical shapes of the complexes formed by the reaction of Ni2+ with Cl–, CN– and.... | 0:00 | 0 | |
|
| 2024-09-27 | Chloroform is stored in dark coloured bottles. Explain in not more than two sentences..... | 0:00 | 5 | |
|
| 2024-09-27 | A substanceAxBy crystallises in a face centred cubic (fcc) lattice in which atoms A occupy each .... | 0:00 | 1 | |
|
| 2024-09-27 | Dilute HCl oxidizes metallic Fe to Fe+2.... | 0:00 | 1 | |
|
| 2024-09-27 | Draw the structure of P4O10 and identify the number of single and double P – O bonds..... | 0:00 | 1 | |
|
| 2024-09-27 | Which of the following is more acidic and why?\n.... | 0:00 | 1 | |
|
| 2024-09-27 | Rate of physisorption increases with.... | 0:00 | 1 | |
|
| 2024-09-27 | A first order reaction, A→B, requires activation energy of 70 kJ mol-1. When a 2.... | 0:00 | 2 | |
|
| 2024-09-27 | For the gas phase reaction, C2H4+H2⇌C2H6(ΔH=-32.7kcal) carried out in a vessel, the e.... | 0:00 | 1 | |
|
| 2024-09-27 | At 380° C, the half-life period for the first order decomposition of H2O2 is 360 min. .... | 0:00 | 0 | |
|
| 2024-09-27 | A catalyst is a substance which.... | 0:00 | 0 | |
|
| 2024-09-27 | In the uranium radioactive series, the initial nucleus isU92238 and the final nucleus is P82206b.... | 0:00 | 0 | |
|
| 2024-09-27 | The standard reduction-potential for the half-cellNO3(aq)+2H++e-→NO2( g)+H2O is&.... | 0:00 | 1 | |
|
| 2024-09-27 | Plots showing the variation of the rate constant (k) with temperature (T) are given below. The p.... | 0:00 | 0 | |
|
| 2024-09-27 | Which force causes the train to elevate up ?.... | 0:00 | 2 | |
|
| 2024-09-27 | Write the balanced equation for the preparation of crystalline silicon from SiCl4..... | 0:00 | 0 | |
|
| 2024-09-27 | The degrec of dissociation of CaNO32 in a dilute aqueous solution containing 7.0 g of the s.... | 0:00 | 1 | |
|
| 2024-09-27 | What is the advantage of this system?.... | 0:00 | 1 | |
|
| 2024-09-27 | The equilibrium SO2Cl2(g)⇌SO2(g)+Cl2(g) is attained at 25°C in a closed container and an ine.... | 0:00 | 1 | |
|
| 2024-09-27 | A sodium salt of an unknown anion when treated with MgCI2 gives white precipitate only on boilin.... | 0:00 | 3 | |
|
| 2024-09-27 | Two large circular discs separated by a distance of 0.01 m are connected to a battery via a swit.... | 0:00 | 2 | |
|
| 2024-09-27 | What is the disadvantage of this system ?.... | 0:00 | 2 | |
|
| 2024-09-27 | Pure ammonia is placed in a vessel at a temperature where its dissociation constant \\((\\alpha).... | 0:00 | 2 | |
|
| 2024-09-27 | One gram mole of oxygen at27°C and one atmospheric pressure is enclosed in a vessel.\n(a) A.... | 0:00 | 3 | |
|
| 2024-09-27 | The displacement of the medium in a sound wave is given by the equationy1=Acos(ax+bt) where A, a.... | 0:00 | 0 | | The Medium
|
| 2024-09-27 | The ratio of the kinetic energy of then = 2 electron for theH atom to that ofHe+ ion i.... | 0:00 | 3 | |
|
| 2024-09-27 | State TRUE or FALSE\nWater in a closed tube (see figure) is heated with one arm vertically place.... | 0:00 | 0 | |
|
| 2024-09-27 | CH32C=CHCOCH3 can be oxidized to CH32C=CHCOOH by:.... | 0:00 | 0 | |
|
