| 2024-09-27 | In cold conditions, aniline is diazotized and then treated with \\(N , N\\)-dimethylaniline to g.... | 0:00 | 1 | |
|
| 2024-09-27 | The ore having two different metal atoms is.... | 0:00 | 4 | |
|
| 2024-09-27 | Write the reaction involved in :(a) Hoffmann-bromamide reaction, and(b) Carbylamine reaction.... | 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 | Alcohols have higher boiling points than other classes of compounds, namely hydrocarbons, ethers.... | 0:00 | 0 | |
|
| 2024-09-27 | What are secondary batteries? Give an example..... | 0:00 | 0 | |
|
| 2024-09-27 | The major product of the following reaction is\n.... | 0:00 | 1 | |
|
| 2024-09-27 | The area of the equilateral triangle, in which three coins of radius \\(1 \\mathrm{~cm}\\) are p.... | 0:00 | 1 | |
|
| 2024-09-27 | All the lanthanoids show +3 as the common oxidation state, yet \\(Ce\\) shows +4 state because.... | 0:00 | 3 | |
|
| 2024-09-27 | Define self-inductance of a coil. Write its SI unit..... | 0:00 | 0 | |
|
| 2024-09-27 | A catalyst is a substance which.... | 0:00 | 0 | |
|
| 2024-09-27 | Define the following terms :\nAdsorption.... | 0:00 | 1 | |
|
| 2024-09-27 | A potentiometer can measure emf of a cell because:.... | 0:00 | 1 | |
|
| 2024-09-27 | A basic volatile nitrogen compound gave a foul smelling gas when treated with chloroform and alc.... | 0:00 | 0 | |
|
| 2024-09-27 | Letα ∈ R. Prove that a functionf : R → R is diffe.... | 0:00 | 0 | |
|
| 2024-09-27 | A sodium salt of an unknown anion when treated with MgCl2 gives white precipitate only on boilin.... | 0:00 | 3 | |
|
| 2024-09-27 | Supposedet∑k=0nk∑k=0nCknk2∑k=0nCknk∑k=0nCkn3k=0 holds for some positive integer .... | 0:00 | 2 | |
|
| 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 | In photoelectric effect, does the photoelectric current depend on the intensity of incident radi.... | 0:00 | 0 | |
|
| 2024-09-27 | Calculate the number of unpaired electrons in the following gaseous ions :\nV3+,Ti3+.... | 0:00 | 2 | |
|
| 2024-09-27 | Give reasons for the following in one or two sentences.\"Acetic acid can be halogenated in the p.... | 0:00 | 1 | |
|
| 2024-09-27 | IfG(x)=−25−x2, thenlimx→1 G(x)−G(1)x−1 has the value.... | 0:00 | 0 | |
|
| 2024-09-27 | Hydrogenation of benzoyl chloride in the presence of \\(\\mathrm{Pd}_{\\text {on }} \\mathrm{BaS.... | 0:00 | 1 | |
|
| 2024-09-27 | Write the structure of foul smelling compound obtained when aniline is treated with chloroform i.... | 0:00 | 1 | |
|
| 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 | Name the electromagnetic radiation used in eye surgery or to kill germs in water purifiers. Writ.... | 0:00 | 1 | |
|
| 2024-09-27 | For a reaction R P, half life (t1/2) is independent of the initial concentration of reactants. W.... | 0:00 | 1 | |
|
| 2024-09-27 | Identify the set of reagents/reaction conditions X and Y in the following set of transformations.... | 0:00 | 0 | |
|
| 2024-09-27 | \\(a_{12}=\\).... | 0:00 | 0 | |
|
| 2024-09-27 | Give a chemical test to distinguish between methanol and ethanol..... | 0:00 | 5 | |
|
| 2024-09-27 | CH3OH2+is_______acidic than CH3NH3+.... | 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 | Define the angle of inclination at a given place due to earth’s magnetic field..... | 0:00 | 0 | |
|
| 2024-09-27 | Explain the terms (i) Q-factor, (ii) Power factor, and (iii) Wattless current..... | 0:00 | 0 | |
|
| 2024-09-27 | The spin only magnetic moment value (in Bohr magneton units) of Cr(CO)6 is.... | 0:00 | 0 | |
|
| 2024-09-27 | The final solution contains.... | 0:00 | 2 | |
|
| 2024-09-27 | An organic compound \\(\\left(\\mathrm{C}_8 \\mathrm{H}_{10} \\mathrm{O}_2\\right)\\) rotates pl.... | 0:00 | 3 | |
|
| 2024-09-27 | When phenol is reacted with \\(\\mathrm{CHCl}_3\\) and \\(\\mathrm{NaOH}\\) followed by acidific.... | 0:00 | 1 | |
|
| 2024-09-27 | Pure ammonia is placed in a vessel at a temperature where its dissociation constant \\((\\alpha).... | 0:00 | 2 | |
|
| 2024-09-27 | How does the energy gap of an intrinsic semiconductor change when doped with a trivalent impurit.... | 0:00 | 3 | |
|
| 2024-09-27 | An object approaches a converging lens with a uniform speed of \\(5 m / s\\) and stops at the fo.... | 0:00 | 0 | |
|
| 2024-09-27 | The correct structure of ethylenediaminetetraacetic acid (EDTA) is.... | 0:00 | 0 | |
|
| 2024-09-27 | The compound N is.... | 0:00 | 1 | |
|
| 2024-09-27 | Photobromination of 2-methylpropane gives a mixture of 1-bromo- 2-methylpropane and 2-bromo-2-me.... | 0:00 | 1 | |
|
| 2024-09-27 | Give reasons in two or three sentences only for the following: “The species [CuCl4]2&ndash.... | 0:00 | 1 | |
|
| 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 | If A and B are two independent events such that P(A)>0, and P(B)≠1, then P(A¯/B¯.... | 0:00 | 0 | |
|
| 2024-09-27 | When a white crystalline compound is heated with K2Cr2O7 and concentrated H2SO4, a reddish brown.... | 0:00 | 1 | |
|
| 2024-09-27 | In Arrhenius equation, k=Ae(-E/RT),A may be termed as the rate constant at _____.... | 0:00 | 1 | |
|
| 2024-09-27 | Following reaction gives two products. Write the structures of the products.CH3CONHC6H5→Br.... | 0:00 | 1 | |
|
| 2024-09-27 | Write the formulae of the following complexes:(i) Pentamminechlorocobalt (III) ion(ii) Lithium t.... | 0:00 | 0 | |
|
| 2024-09-27 | In Arrhenius equation for a certain reaction, the value of A and E2 (activation energy) are 4.... | 0:00 | 0 | |
|
| 2024-09-27 | A thin conducting rodMN of mass 20gm, length25cm and resistance10Ω is held on frictionless,.... | 0:00 | 3 | |
|
| 2024-09-27 | Cyclohexene on ozonolysis followed by reaction with zinc dust and water gives compound E. Compou.... | 0:00 | 0 | |
|
| 2024-09-27 | Considering the following reaction sequence, the correct statement(s) is(are)\n.... | 0:00 | 2 | |
|
| 2024-09-27 | For a first order reaction, A→P, the temperature (T) dependent rate constant (k) was found .... | 0:00 | 1 | |
|
| 2024-09-27 | Answer by appropriately matching the lists based on the information given in the paragraph List-.... | 0:00 | 0 | |
|
| 2024-09-27 | How many unpaired electrons are present in Ni2+?.... | 0:00 | 0 | |
|
| 2024-09-27 | Hydrolysis of one mole of peroxodisulphuric acid produces.... | 0:00 | 1 | |
|
| 2024-09-27 | In process 1 , the energy stored in the capacitor EC and heat dissipated across resistance ED ar.... | 0:00 | 5 | |
|
| 2024-09-27 | The major product of the following reaction sequence is\n.... | 0:00 | 5 | |
|
| 2024-09-27 | Optically active 2-iodobutane on treatment with NaI in acetone gives a product which does not sh.... | 0:00 | 0 | |
|
| 2024-09-27 | Faraday's laws of electrolysis are related to the.... | 0:00 | 1 | |
|
| 2024-09-27 | Which of the following compounds is oxidised to prepare methyl ethyl ketone?.... | 0:00 | 2 | |
|
| 2024-09-27 | Argon is used in arc welding because of its.... | 0:00 | 0 | |
|
| 2024-09-27 | Which of the following statement(s) is (are) correct?.... | 0:00 | 3 | |
|
| 2024-09-27 | A thin fixed ring of radius1 m has a positive charge1×10-5C uniformly distributed over.... | 0:00 | 2 | |
|
| 2024-09-27 | In the complex acetylbromidodicarbonylbis (triethylphosphine) iron (II), the number of Fe—.... | 0:00 | 0 | |
|
| 2024-09-27 | Among the following complexes (K – P),K3Fe(CN)6(K),CoNH36Cl3(L),Na3Co(Ox)3(M),NiH2O6Cl2(N).... | 0:00 | 5 | |
|
| 2024-09-27 | The hybridisation of carbon atoms in C–C single bond H–C≡C–CH=CH2is.... | 0:00 | 1 | |
|
| 2024-09-27 | EDTA4– is ethylenediaminetetracetate ion. The total number of N—Co—O bond angl.... | 0:00 | 0 | |
|
| 2024-09-27 | Give reasons in two or three sentences only. Sulphur dioxide is a more powerful reducing agent i.... | 0:00 | 1 | |
|
| 2024-09-27 | State weather given statement is True or False;\nThe kinetic energy of photoelectrons emitted by.... | 0:00 | 0 | |
|
| 2024-09-27 | Statement - I : Zn2+ is diamagnetic.Statement - II : The electrons are lost from 4s orbital to f.... | 0:00 | 1 | |
|
| 2024-09-27 | Mixture X = 0.02 mole of[Co(NH3)5SO4]Br and 0.02 mole of[Co(NH3)5Br]SO4was prepared in 2L of sol.... | 0:00 | 0 | |
|
| 2024-09-27 | Which one of the following oxides is neutral?.... | 0:00 | 2 | |
|
| 2024-09-27 | Complete and balance the following reaction. Red phosphorus is reacted with iodine in the presen.... | 0:00 | 0 | |
|
| 2024-09-27 | Among the following, the number of compounds that can react with PCl5 to give POCl3 is O2, CO2, .... | 0:00 | 0 | |
|
| 2024-09-27 | Two thin lenses, when in contact, produce a combination of power + 10 D. When they are.... | 0:00 | 1 | |
|
| 2024-09-27 | Write the balanced equations involved in the preparation of(i) bleaching powder from slaked lime.... | 0:00 | 0 | |
|
| 2024-09-27 | Amongst the following, identify the species with an atom in + 6 oxidation state.... | 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 empty space in this hep unit cell is.... | 0:00 | 1 | |
|
| 2024-09-27 | In the reaction, P+Q→R+S, the time taken for 75 % reaction of P is twice the time talen for.... | 0:00 | 1 | |
|
| 2024-09-27 | Three glass cylinders of equal heightH=30cm and same refractive indexn=1.5 are placed on a horiz.... | 0:00 | 2 | |
|
| 2024-09-27 | The increase in solubility of iodine in aqueous solution of KI is due to the formation of ____.... | 0:00 | 2 | |
|
| 2024-09-27 | Work out the following using chemical equations “Chlorination of calcium hydroxide produce.... | 0:00 | 0 | |
|
| 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 | The reaction(s) leading to the formation of 1, 3, 5-trimethylbenzene is (are).... | 0:00 | 2 | |
|
| 2024-09-27 | Sunlight of intensity1.3kWm-2 is incident normally on a thin convex lens of focal length 20cm. I.... | 0:00 | 0 | |
|
| 2024-09-27 | The image of an object, formed by a plano-convex lens at a distance of8 m behind the lens, .... | 0:00 | 7 | |
|
| 2024-09-27 | The radiation from a naturally occurring radioactive substance, as seen after deflection by a ma.... | 0:00 | 0 | |
|
| 2024-09-27 | Spontaneous adsorption of a gas on solid surface is an exothermic process, because.... | 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 | Calculate the amount of calcium oxide required when it reacts with 852 g of P4O10..... | 0:00 | 1 | |
|
| 2024-09-27 | Light travels as a.... | 0:00 | 0 | |
|
| 2024-09-27 | A slab of material of refractive index2 shown in figure has a curved surface APB of radius of cu.... | 0:00 | 2 | |
|
| 2024-09-27 | The value of y is ________.... | 0:00 | 0 | |
|
| 2024-09-27 | U92238is radioactive and it emits α and β particles to form  Pb82206. Calculate t.... | 0:00 | 0 | |
|
| 2024-09-27 | For the circuit shown, which of the following statements is true?\n\n.... | 0:00 | 3 | |
|
