| 2024-09-24 | In which pair of ions both the species contain S – S bond?.... | 0:00 | 3 | |
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| 2024-09-24 | Acetophenone when reacted with a base, C2H5ONa, yields a stable compound which has the structure.... | 0:00 | 2 | |
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| 2024-09-24 | Silicones are used as:.... | 0:00 | 0 | |
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| 2024-09-24 | A magnetic needle free to rotate in a vertical plane orients itself vertically at a certain plac.... | 0:00 | 5 | |
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| 2024-09-24 | Which curve would depict the population of a species of deer if there are no predators in the ha.... | 0:00 | 5 | |
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| 2024-09-24 | Which of the following reagents would distinguish ciscyclopenta-1, 2-diol from the trans-isomer?.... | 0:00 | 3 | |
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| 2024-09-24 | Low spin complex of d6 - cation in an octahedral field will have the following energy:.... | 0:00 | 4 | |
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| 2024-09-24 | The energy equivalent of 10 g of a substance is ___________ J..... | 0:00 | 1 | |
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| 2024-09-24 | Zn gives H2 gas with H2SO4 and HCl but not with HNO3 because: .... | 0:00 | 7 | |
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| 2024-09-24 | Reaction by which Benzaldehyde cannot be prepared:.... | 0:00 | 2 | |
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| 2024-09-24 | The total number of possible isomers for the complex compound CuIINH34PtIICl4.... | 0:00 | 3 | |
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| 2024-09-24 | Explain, what is observed whencurrent is passed through colloidal sol,.... | 0:00 | 7 | |
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| 2024-09-24 | A biconvex lens of focal length \\(20 \\mathrm{~cm}\\) is immersed in water, whose refractive in.... | 0:00 | 5 | |
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| 2024-09-24 | Identify the incorrect statement among the following:.... | 0:00 | 1 | |
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| 2024-09-24 | A thin converging lens of focal length \\(10 cm\\) is placed coaxially in contact with a t.... | 0:00 | 47 | |
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| 2024-09-24 | State and explain the law used to determine magnetic field at a point due to a current element. .... | 0:00 | 13 | |
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| 2024-09-24 | Determine the distance of closest approach when an alpha particle of kinetic energy \\(3.95 \\ma.... | 0:00 | 7 | |
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| 2024-09-24 | Which of the following methods is used to convert ketone into hydrocarbon?.... | 0:00 | 1 | |
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| 2024-09-24 | Which of the following statement(s) is/are correct about the spectrum of hydrogen atom?.... | 0:00 | 1 | |
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| 2024-09-24 | A mixture of potassium chlorate, oxalic acid and sulphuric acid is heated. During the reaction, .... | 0:00 | 3 | |
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| 2024-09-24 | A current flows through a series combination of two copper wires of equal length but their radii.... | 0:00 | 34 | |
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| 2024-09-24 | Two metallic spheres A and B kept on insulating stands are in contact with each other. A positiv.... | 0:00 | 2 | |
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| 2024-09-24 | A germanium crystal is doped with antimony. With the help of energy-band diagram, explain how th.... | 0:00 | 5 | |
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| 2024-09-24 | Of the following complex ions, which is diamagnetic in nature?.... | 0:00 | 9 | |
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| 2024-09-24 | Find the probability distribution of \\(X\\), the number of heads in a simultaneous toss of two .... | 0:00 | 0 | |
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| 2024-09-24 | For irreversible expansion of an ideal gas under isothermal condition, the correct option is:.... | 0:00 | 1 | |
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| 2024-09-24 | Two circular loops A and B, each of radius \\(3 \\mathrm{~m}\\), are placed coaxially at a dista.... | 0:00 | 16 | |
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| 2024-09-24 | If tan-1x-cot-1x=tan-113,x>0, find the value of x and hence find the value of sec-12x..... | 0:00 | 4 | |
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| 2024-09-24 | Two charges \\(\\mathrm{q}_1\\) and \\(\\mathrm{q}_2\\) are placed at the centres of two spheric.... | 0:00 | 1 | |
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| 2024-09-24 | The angular shape of ozone molecule O3 consists of:.... | 0:00 | 1 | |
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| 2024-09-24 | Find :\\[\\int \\frac{1}{e^x+1} d x\\].... | 0:00 | 1 | |
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| 2024-09-24 | Calculate the number of moles in the following masses(i) 1.46 metric ton of Al (1 metric ton = 1.... | 0:00 | 6 | |
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| 2024-09-24 | Draw a labelled ray diagram to show image formation by a compound microscope and write the expre.... | 0:00 | 5 | |
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| 2024-09-24 | Evaluate : \\(\\int_0^{2 \\pi} \\frac{ d x}{1+ e ^{\\sin x}}\\).... | 0:00 | 1 | |
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| 2024-09-24 | A hydrogen atom in the ground state is excited by an electron beam of 12.5eV energy. Find o.... | 0:00 | 5 | |
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| 2024-09-24 | Ketones RCOR1 where R=R1= alkyl group. It can be obtained in one step by:.... | 0:00 | 3 | |
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| 2024-09-24 | (i) Define the terms : 'impact parameter' and 'distance of closest approach' for an \\(\\alpha\\.... | 0:00 | 2 | |
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| 2024-09-24 | Why is it necessary to use a salt bridge in a galvanic cell?.... | 0:00 | 1 | |
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| 2024-09-24 | (a) What is amplitude modulation ? Draw a diagram showing an amplitude modulated wave obtained b.... | 0:00 | 7 | | Amplitude
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| 2024-09-24 | Find the general solution of the differential equation :\\[\\left(x^3+y^3\\right) d y=x^2 y d x\.... | 0:00 | 1 | |
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| 2024-09-24 | Explain briefly, using a proper diagram, the difference in behaviour of a conductor and a dielec.... | 0:00 | 6 | |
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| 2024-09-24 | Which one of the following molecular hydrides acts as a Lewis acid?.... | 0:00 | 0 | |
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| 2024-09-24 | Give reasons for the following :\n\\(\\alpha\\)-hydrogens of aldehydes and ketones are acidic in.... | 0:00 | 1 | |
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| 2024-09-24 | With which of the following electronic configuration, an atom has the lowest ionisation enthalpy.... | 0:00 | 5 | |
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| 2024-09-24 | Solve the differential equation :\\[x \\frac{d y}{d x}=y-x \\tan \\left(\\frac{y}{x}\\right)\\].... | 0:00 | 4 | |
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| 2024-09-24 | In a plot of \\(\\wedge_m\\) against the square root of concentration \\(\\left(C^{1 / 2}\\right.... | 0:00 | 6 | |
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| 2024-09-24 | Find:∫sinx-cosx1+sin2xdx,0<x<π/2.... | 0:00 | 2 | |
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| 2024-09-24 | The formation of the oxide ion, \(O ^{2-}( g )\) from oxygen atom requires first an exothermic s.... | 0:00 | 1 | |
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| 2024-09-24 | The current in 8 Ω resistance is (See fig.):
.... | 0:00 | 5 | |
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| 2024-09-24 | How does the net electric field at the midpoint on the line joining the two spheres change after.... | 0:00 | 379 | |
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| 2024-09-24 | Show that the operation \\(*\\) on \\(Q\\), the set of all rational numbers, defined as \\(a * b.... | 0:00 | 0 | |
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| 2024-09-24 | Answer the following, giving reason :Photodiodes are operated in reverse bias..... | 0:00 | 3 | |
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| 2024-09-24 | Show by examples that the relation \\(R\\) in \\(R\\), defined by \\(R=\\left\\{(a, b): a \\leq .... | 0:00 | 6 | |
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| 2024-09-24 | Which of the following two species in the pair are isostructural?.... | 0:00 | 4 | |
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| 2024-09-24 | A triangular prism of refracting angle 60° is made of a transparent material of refrac.... | 0:00 | 7 | |
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| 2024-09-24 | Answer the following giving reasons :The angular size of the image equals the angular size of th.... | 0:00 | 69 | |
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| 2024-09-24 | Find the solution of the differential equation :\\[\\left(e^x+e^{-x}\\right) \\frac{d y}{d x}=\\.... | 0:00 | 0 | |
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| 2024-09-24 | A ray of light passes through a prism of refractive index \\(\\sqrt{2}\\) as shown in the figure.... | 0:00 | 9 | |
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| 2024-09-24 | Calculate the energy released in \\(MeV\\) in the following reaction :\\[{ }_1^2 H +{ }_1^3 H \\.... | 0:00 | 3 | |
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| 2024-09-24 | Which is the correct symbol relating the two Kekule structures of benzene?.... | 0:00 | 2 | |
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| 2024-09-24 | Which of the following compounds has the lowest melting point?.... | 0:00 | 1 | |
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| 2024-09-24 | Answer the following giving reasons :Both the objective and the eyepiece of a compound microscop.... | 0:00 | 40 | |
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| 2024-09-24 | If \\(P ( A )=0.6, P ( B )=0.5\\) and \\(P ( B \\mid A )=0.4\\), find \\(P ( A \\cup B )\\) and .... | 0:00 | 2 | |
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| 2024-09-24 | (i) Two independent monochromatic sources of light cannot constitute coherent sources. Explain.\.... | 0:00 | 0 | |
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| 2024-09-24 | (a) Write the expression for the speed of light in a material medium of relative permittivity &#.... | 0:00 | 5 | |
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| 2024-09-24 | The ratio of frequencies of fundamental harmonic produced by an open pipe to that of a closed pi.... | 0:00 | 4 | |
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| 2024-09-24 | Which of the following is an example of synthetic rubber?.... | 0:00 | 0 | |
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| 2024-09-24 | A current carrying loop is placed in a uniform magnetic field. The torque acting on it does not .... | 0:00 | 34 | |
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| 2024-09-24 | Let \\(A\\) and \\(B\\) be two events such that \\(P(A)=\\frac{5}{8}, P(B)=\\frac{1}{2}\\).... | 0:00 | 1 | |
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| 2024-09-24 | In β-decay, the parent and daughter nuclei have the same number of__________..... | 0:00 | 0 | |
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| 2024-09-24 | If the net electric flux through a closed surface is zero, then we can infer 1.... | 0:00 | 2 | |
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| 2024-09-24 | Dependence of intensity of gravitational field (E) of earth with distance (r) from center of ear.... | 0:00 | 5 | |
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| 2024-09-24 | The probability distribution of a random variable \\(\\mathrm{X}\\) is given below :\n\nFind \\(.... | 0:00 | 4 | |
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| 2024-09-24 | A 200μF parallel plate capacitor having plate separation of 5 mm is charged .... | 0:00 | 11 | |
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| 2024-09-24 | Define the following terms with an example :\n(I) Ambidentate ligand\n(II) Chelate effect.... | 0:00 | 4 | |
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| 2024-09-24 | In an unbiased p-n junction diode, the diffusion current is equal to the drift current under &nb.... | 0:00 | 3 | |
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| 2024-09-24 | Write the necessity of using a radial magnetic field in a galvanometer..... | 0:00 | 2 | |
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| 2024-09-24 | Define escape velocity obtain an expression for escape velocity of a body from the surface of ea.... | 0:00 | 5 | |
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| 2024-09-24 | Simplify :\\[\\tan ^{-1}\\left(\\frac{\\cos x}{1-\\sin x}\\right)\\].... | 0:00 | 9 | |
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| 2024-09-24 | Two large charged plane sheets of charge densities σ and -2σC/m2 are arrange.... | 0:00 | 6 | |
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| 2024-09-24 | State two conditions for two light sources to be coherent..... | 0:00 | 2 | |
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| 2024-09-24 | Find :\\[\\int \\frac{\\tan ^3 x}{\\cos ^3 x} d x\\].... | 0:00 | 3 | |
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| 2024-09-24 | A solution was prepared by dissolving \\(5 \\mathrm{~g}\\) of non-volatile solute in \\(95 \\mat.... | 0:00 | 5 | |
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| 2024-09-24 | (a) Name the product formed when Propyne is treated with aqueous H2SO4 in the presence of dil. H.... | 0:00 | 2 | |
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| 2024-09-24 | Assertion: Despite having an aldehydic group glucose does not give 2,4-DNP test.\nReason: Glucos.... | 0:00 | 5 | |
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| 2024-09-24 | A straight wire carrying a current of 5 A is bent into a semicircular arc of radius 2 .... | 0:00 | 2 | |
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| 2024-09-24 | A ray of light passes through an equilateral triangular prism and suffers minimum deviation of 3.... | 0:00 | 2 | |
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| 2024-09-24 | Assertion (A) : The C-O-C bond angle in ethers is slightly less than tetrahedral angle.Reason (R.... | 0:00 | 6 | |
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| 2024-09-24 | Calculate the amount of calcium chloride (Molar mass \\(=\\) \\(111 \\mathrm{~g} \\mathrm{~mol}^.... | 0:00 | 7 | |
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| 2024-09-24 | Complete the following reactions:\n(i) CH3CH2Br →Alc. KOH (ii) CH.... | 0:00 | 1 | |
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| 2024-09-24 | Consider the following observation;
Mn++HCl (dilute)⟶white precipitate→Δ&nb.... | 0:00 | 2 | |
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| 2024-09-24 | Obtain Bohr's quantisation condition for angular momentum of electron orbiting in nth  orbi.... | 0:00 | 0 | |
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| 2024-09-24 | How is the forward biasing different from the reverse biasing in a p-n junction diode? Name one .... | 0:00 | 1 | |
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| 2024-09-24 | Account for the following :Transition metals form complex compounds..... | 0:00 | 0 | |
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| 2024-09-24 | Give reasons :Bleeding stops by rubbing moist alum on the cut..... | 0:00 | 0 | |
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| 2024-09-24 | (a) What is the name of the Prussian blue coloured compound formed in Lassaigne’s test for.... | 0:00 | 3 | |
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| 2024-09-24 | Two long straight parallel conductors carrying steady currents \\(\\mathrm{I}_1\\) and \\(\\math.... | 0:00 | 16 | |
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| 2024-09-24 | Write reasons for the following :\nAmino group is \\(o\\) - and \\(p\\)-directing in aromatic el.... | 0:00 | 1 | |
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| 2024-09-24 | Unpolarised light of intensity Io is incident on two crossed polaroids. The intensity of light t.... | 0:00 | 2 | | Intensity
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| 2024-09-24 | The reactivities of the carbonyl compounds \\(\\mathrm{HCHO}\\) (I), \\(\\mathrm{CH}_3 \\mathrm{.... | 0:00 | 2 | |
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