| 2024-09-27 | Calculate the amount of calcium oxide required when it reacts with 852 g of P4O10..... | 0:00 | 1 | |
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| 2024-09-27 | Light travels as a.... | 0:00 | 0 | |
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| 2024-09-27 | Which of the following statement(s) is/are correct?.... | 0:00 | 0 | |
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| 2024-09-27 | If the unit cell of a mineral has cubic close packed (ccp) array of oxygen atoms with m fraction.... | 0:00 | 1 | |
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| 2024-09-27 | Two metallic plates A and B each of area 5×10-4m2, are placed parallel to each other at sep.... | 0:00 | 2 | |
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| 2024-09-27 | Which of the following set-up can be used to verify ohm's law?.... | 0:00 | 2 | |
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| 2024-09-27 | A planet of radius R=110× (radius of earth) has the same mass density as earth. Scientists .... | 0:00 | 0 | |
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| 2024-09-27 | How many optically active stereoisomers are possible for butane–2, 3–diol?.... | 0:00 | 3 | |
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| 2024-09-27 | In a Young’s double slit experiment, the slit separation d is 0.3mm and the screen distanc.... | 0:00 | 2 | |
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| 2024-09-27 | A disc of radius a4 having a uniformly distributed charge 6C is placed in the x-y plane with its.... | 0:00 | 1 | |
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| 2024-09-27 | The value of K is ____ ..... | 0:00 | 4 | |
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| 2024-09-27 | Which of the following will have least hindered rotation about carbon-carbon bond?.... | 0:00 | 0 | |
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| 2024-09-27 | The work done in bringing the dipole from infinity to a distancer from the center of the loop by.... | 0:00 | 0 | |
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| 2024-09-27 | There is a crater of depth R100 on the surface of the moon (radius R ). A projectile is fired ve.... | 0:00 | 2 | |
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| 2024-09-27 | Four persons K, L, M, N are initially at the four corners of a square of side d. Each person now.... | 0:00 | 1 | |
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| 2024-09-27 | Give reasons for the following in one or two sentences:\"Graphite is used as a solid lubricant.\.... | 0:00 | 3 | |
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| 2024-09-27 | A pair of stationary and infinitely long bent wires are placed in thexy plane as shown in figure.... | 0:00 | 0 | |
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| 2024-09-27 | Statement (I): Phenols having free para position respond positively to Liebermann’s nitros.... | 0:00 | 5 | |
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| 2024-09-27 | Match the physical quantities given in Column-I with dimensions expressed in terms of mass (M), .... | 0:00 | 2 | |
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| 2024-09-27 | In thermodynamics the P-V work done is given byw=-∫dVPext.\nFor a system undergoing a part.... | 0:00 | 1 | |
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| 2024-09-27 | A vessel contains a mixture of one mole of oxygen and two moles of nitrogen at 300 K. The r.... | 0:00 | 1 | |
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| 2024-09-27 | If the electric flux entering and leaving a closed surface in air are ϕ1 and b.... | 0:00 | 2 | |
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| 2024-09-27 | orie4whk839n4hxh6x9dh3dmx.... | 0:00 | 52 | |
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| 2024-09-27 | The modern atomic mass unit is based on the mass of ______.... | 0:00 | 0 | |
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| 2024-09-27 | A block of base 10 cm × 10 cm and height 15 cm is kept on an inclined plane. The coefficie.... | 0:00 | 4 | |
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| 2024-09-27 | Photons of energies 1 eV and 2 eV are successively incident on a metallic surface of work functi.... | 0:00 | 1 | |
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| 2024-09-27 | (a) Write two main observations of photoelectric effect experiment which could only be explained.... | 0:00 | 2 | |
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| 2024-09-27 | A plano-convex lens has a thickness of 4 cm. When placed on a horizontal table, with the cu.... | 0:00 | 1 | |
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| 2024-09-27 | A ball of mass (m) 0.5kg is attached to the end of a string having length (l) 0.5m. The ball is .... | 0:00 | 3 | |
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| 2024-09-27 | Account for the following :Actinoids show a wide range of oxidation states..... | 0:00 | 1 | |
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| 2024-09-27 | The variation of the stopping potential V0 with the frequency (v)of the light incident on two di.... | 0:00 | 14 | |
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| 2024-09-27 | Spherical aberration in a thin lens can be reduced by.... | 0:00 | 0 | |
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| 2024-09-27 | A square shaped plane coil of area 100 cm2 of 200 turns carries a steady current of 5 A. It is p.... | 0:00 | 7 | |
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| 2024-09-27 | The unit of rate constant and rate of reaction are identical for a :.... | 0:00 | 6 | |
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| 2024-09-27 | Account for the following :\n(a) Sulphurous acid is a reducing agent.\n(b) Fluorine forms only o.... | 0:00 | 2 | |
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| 2024-09-27 | A thin slice is cut out of a glass cylinder along a plane parallel to its axis.The slice is plac.... | 0:00 | 0 | |
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| 2024-09-27 | Out of and , which one is more reactive towards nucleophilic substitution reaction and why ?.... | 0:00 | 3 | |
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| 2024-09-27 | Write the hybridisation, shape and magnetic character of CoF63-. [Atomic number of Co=27 ].... | 0:00 | 4 | |
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| 2024-09-27 | (a) How will you distinguish between the following pairs of compounds :\n(i) Aniline and Ethanam.... | 0:00 | 1 | |
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| 2024-09-27 | Seven capacitors each of capacitance 2μF are connected in a configuration to obtain an effe.... | 0:00 | 1 | |
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| 2024-09-27 | A biconvex lens of glass having refractive index 1.47 is immersed in a liquid. It becomes invisi.... | 0:00 | 3 | |
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| 2024-09-27 | Answer the following :Arrange the following hydrides of Group 16 elements in the decreasing orde.... | 0:00 | 2 | |
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| 2024-09-27 | Write the name of the allotrope of sulphur which is stable at room temperature..... | 0:00 | 1 | |
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| 2024-09-27 | {"english":"Give reasons for the following statements :\nTransition metals and most of their com.... | 0:00 | 0 | |
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| 2024-09-27 | Larger aperture of objective lens in an astronomical telescope:.... | 0:00 | 2 | |
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| 2024-09-27 | Name the temperature above which micelle formation takes place..... | 0:00 | 4 | |
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| 2024-09-27 | Write the preparation of \\(\\mathrm{Na}_2 \\mathrm{Cr}_2 \\mathrm{O}_7\\) from chromite ore..... | 0:00 | 0 | |
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| 2024-09-27 | A furniture trader deals in only two items - chairs and tables. He has \\(₹ 50,000\\) to invest .... | 0:00 | 0 | |
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| 2024-09-27 | Write the mechanism of the following reaction :\\[\\mathrm{CH}_3-\\mathrm{CH}_2-\\mathrm{OH} \\x.... | 0:00 | 5 | |
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| 2024-09-27 | On what factor does the wavelength of the light emitted by an LED depend?.... | 0:00 | 6 | |
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| 2024-09-27 | Outline the principles of refining of the following metals :\\(Si\\).... | 0:00 | 1 | |
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| 2024-09-27 | Give the structure of the monomer of PVC..... | 0:00 | 0 | |
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| 2024-09-27 | An aromatic compound ' \\(A\\) ' on treatment with \\(CHCl _3\\) and \\(KOH\\) gives two compoun.... | 0:00 | 2 | |
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| 2024-09-27 | Prove that sin2α+sin2β-sin2γ=2sinαsinβsinγ, where α+&bet.... | 0:00 | 0 | |
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| 2024-09-27 | Let [x] be the greatest integer less than or equals to x. Then, at which of the following point .... | 0:00 | 3 | |
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| 2024-09-27 | \\(\\left[\\mathrm{NiCl}_4\\right]^{2-}\\) is paramagnetic while \\(\\left[\\mathrm{Ni}(\\mathrm.... | 0:00 | 1 | |
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| 2024-09-27 | Out of 2 -Bromopentane and 1 -Bromopentane which one is optically active and why?.... | 0:00 | 2 | |
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| 2024-09-27 | Benzene diazonium chloride on reaction with phenol in weakly basic medium gives.... | 0:00 | 1 | |
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| 2024-09-27 | A straight line through the originO meets the parallel lines 4x+2y=9 and2x+y+6=0 at pointsP andQ.... | 0:00 | 1 | |
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| 2024-09-27 | Write an example of a sol in which a solid is dispersed in the gas..... | 0:00 | 2 | |
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| 2024-09-27 | Write the Freundlich adsorption isotherm at (I) low pressure, and (II) high pressure..... | 0:00 | 1 | |
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| 2024-09-27 | Chloroform is stored in dark coloured bottles. Explain in not more than two sentences..... | 0:00 | 5 | |
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| 2024-09-27 | The graph of the function cosxcos(x+2)–cos2(x+1)is.... | 0:00 | 1 | |
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| 2024-09-27 | Determine a positive integer n ≤ 5, such thatͪ.... | 0:00 | 1 | |
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| 2024-09-27 | Arrange the following compounds in the increasing order of their property indicated : (Any two)(.... | 0:00 | 1 | |
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| 2024-09-27 | Draw the structure of P4O10 and identify the number of single and double P – O bonds..... | 0:00 | 1 | |
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| 2024-09-27 | An orange solid A on heating gave a green residue B, a colourless gas C and water vapour. The dr.... | 0:00 | 1 | |
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| 2024-09-27 | Suppose \\(a, b\\) denote the distinct real roots of the quadratic polynomial \\(x^2+20 x-2020=0.... | 0:00 | 1 | |
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| 2024-09-27 | Choose the primary amine from the following compounds :\nC2H52CHNH2,C2H52NH,CH33N.... | 0:00 | 1 | |
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| 2024-09-27 | A first order reaction, A→B, requires activation energy of 70 kJ mol-1. When a 2.... | 0:00 | 2 | |
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| 2024-09-27 | Give the structures of the products in the following reaction.\n.... | 0:00 | 0 | |
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| 2024-09-27 | Treatment of D-glucose with aqueous NaOH results in a mixture of monosaccharides, which are.... | 0:00 | 1 | |
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| 2024-09-27 | What type of liquids form ideal solutions ?.... | 0:00 | 4 | |
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| 2024-09-27 | A catalyst is a substance which.... | 0:00 | 0 | |
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| 2024-09-27 | How will you bring about the following conversion?\"4-nitro aniline to 1,2,3-tribromobenzene.\".... | 0:00 | 0 | |
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| 2024-09-27 | Which of the following is more acidic and why?\n.... | 0:00 | 1 | |
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| 2024-09-27 | IfCr stands for Crn, then the sum of the series2n2!n2!n!C02-2C12+3C22-…+(-1)n(n+1)Cn2,whe.... | 0:00 | 1 | |
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| 2024-09-27 | Plots showing the variation of the rate constant (k) with temperature (T) are given below. The p.... | 0:00 | 0 | |
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| 2024-09-27 | State the conditions under which the following preparation is carried out. \"Aniline from benzen.... | 0:00 | 1 | |
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| 2024-09-27 | Draw the stereochemical structure of product in the following reaction\n.... | 0:00 | 0 | |
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| 2024-09-27 | From the solution containing copper (+2) and zinc (+2) ions, copper can be selectively precipita.... | 0:00 | 1 | |
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| 2024-09-27 | The degrec of dissociation of CaNO32 in a dilute aqueous solution containing 7.0 g of the s.... | 0:00 | 1 | |
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| 2024-09-27 | ( \\(\\pm\\) ) 2-phenylpropanoic acid on treatment with ( + ) 2-butanol gives (A) and (B). Deduc.... | 0:00 | 0 | |
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| 2024-09-27 | The value of α is __________.... | 0:00 | 1 | |
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| 2024-09-27 | Read the following questions and answer as per the direction given below:\nStatement-I: A very d.... | 0:00 | 1 | |
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| 2024-09-27 | A sodium salt of an unknown anion when treated with MgCI2 gives white precipitate only on boilin.... | 0:00 | 3 | |
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| 2024-09-27 | Write the structures of the products\\[\\left(\\mathrm{CH}_3\\right)_2 \\mathrm{CH}-\\mathrm{OCH.... | 0:00 | 1 | |
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| 2024-09-27 | The oxidation number of phosphorus in BaH2PO22 is.... | 0:00 | 2 | |
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| 2024-09-27 | Name the heterogeneous catalyst used in the polymerisation of ethylene..... | 0:00 | 0 | |
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| 2024-09-27 | Pure ammonia is placed in a vessel at a temperature where its dissociation constant \\((\\alpha).... | 0:00 | 2 | |
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| 2024-09-27 | Which of the following is formed when excess of KCN is added to aqueous solution of copper sulph.... | 0:00 | 0 | |
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| 2024-09-27 | The value of x is __________.... | 0:00 | 0 | |
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| 2024-09-27 | In the following reactions, P, Q, R, and S are the major products.\n\nThe correct statement(s) a.... | 0:00 | 1 | |
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| 2024-09-27 | The ratio of the kinetic energy of then = 2 electron for theH atom to that ofHe+ ion i.... | 0:00 | 3 | |
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| 2024-09-27 | Write balanced equations for the following.(i) Phosphorus is treated with concentrated nitric ac.... | 0:00 | 0 | |
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| 2024-09-27 | Isomers which can be interconverted through rotation around a single bond are.... | 0:00 | 1 | |
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| 2024-09-27 | Which of the following has the most acidic hydrogen?.... | 0:00 | 0 | |
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| 2024-09-27 | A thin conducting rodMN of mass 20gm, length25cm and resistance10Ω is held on frictionless,.... | 0:00 | 3 | |
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| 2024-09-27 | State with balanced equation, what happens when \"propene is bubbled through a hot aqueous solut.... | 0:00 | 0 | |
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| 2024-09-27 | For a gaseous reaction 2B→A, the equilibrium constant Kp is ...... to/than Kc.... | 0:00 | 1 | |
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