| 2024-09-27 | The deficiency of which Vitamin causes rickets?.... | 0:00 | 3 | |
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| 2024-09-27 | Under which conditions can a rainbow be observed? Distinguish between a primary and a secondary .... | 0:00 | 4 | |
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| 2024-09-27 | The variation in the concentration (R) vs. time (t) plot is given below. Answer the following qu.... | 0:00 | 0 | |
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| 2024-09-27 | Which of the following cells has a constant voltage throughout its life?.... | 0:00 | 0 | |
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| 2024-09-27 | The magnetic field and angle of dip at a place on the earth are 0·3G and 30°, respecti.... | 0:00 | 1 | |
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| 2024-09-27 | In a simple microscope, a convex lens of focal length \\(5 cm\\) is used. Calculate the magnifyi.... | 0:00 | 2 | |
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| 2024-09-27 | Write the chemical equation involved in the following reactions :Carbylamine reaction.... | 0:00 | 1 | |
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| 2024-09-27 | Extraction of zinc from zinc blende is achieved by.... | 0:00 | 0 | |
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| 2024-09-27 | A child is born with ADA-deficiency.(a) Suggest and explain a procedure for possible life-long (.... | 0:00 | 1 | |
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| 2024-09-27 | If he charges \\(₹ x\\) for one page of English and \\(₹ y\\) for one page of Hindi, express the.... | 0:00 | 0 | |
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| 2024-09-27 | According to MO theory, which of the following lists ranks the nitrogen species in terms of incr.... | 0:00 | 4 | |
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| 2024-09-27 | If in a triangle ABC,a=1+3cm,b=2cm and ∠C=60°, then find the other two angles and the th.... | 0:00 | 1 | |
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| 2024-09-27 | Complete the following :\nCH3Br→KCNA→LiAlH4B.... | 0:00 | 2 | |
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| 2024-09-27 | The energy of a photon is equal to the kinetic energy of a proton. The energy of the photon is E.... | 0:00 | 2 | |
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| 2024-09-27 | The Cannizzaro’s reaction is not given by.... | 0:00 | 0 | |
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| 2024-09-27 | How will you measure population density of fish in a lake?.... | 0:00 | 0 | |
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| 2024-09-27 | Give reason for the following ‘In acylium ion the structureR–C≡O+ is more stab.... | 0:00 | 1 | |
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| 2024-09-27 | How may the following transformation be carried out (in not more than six steps)? “Ethyl a.... | 0:00 | 0 | |
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| 2024-09-27 |  Let f(x)=7tan8x+7tan6x-3tan4x-3tan2x for all x∈-π2,π2. .... | 0:00 | 0 | |
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| 2024-09-27 | Out of the following, the strongest base in aqueous solution is:.... | 0:00 | 2 | |
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| 2024-09-27 | The structure of the intermediate I is.... | 0:00 | 0 | |
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| 2024-09-27 | Length of chordPQ is.... | 0:00 | 2 | |
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| 2024-09-27 | If S1,S2,S3,…,Sn are the sums of infinite geometric series, whose first terms are \\(1,2,3.... | 0:00 | 1 | |
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| 2024-09-27 | The aqueous solution of the following salts will be coloured in case of.... | 0:00 | 1 | |
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| 2024-09-27 | The value ofr is.... | 0:00 | 2 | |
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| 2024-09-27 | A string of mass per unit length μ is clamped at both ends such that one end of the string is.... | 0:00 | 4 | |
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| 2024-09-27 | Which of the following has the maximum number of unpaired electrons?.... | 0:00 | 0 | |
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| 2024-09-27 | For non-negative integers s and r, letsr=s!r!(s-r)!ifr≤s,0ifr>s\nFor positive integers m a.... | 0:00 | 2 | |
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| 2024-09-27 | Why is adsorption exothermic in nature? What is the effect of increasing temperature on adsorpti.... | 0:00 | 3 | |
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| 2024-09-27 | The gas phase decomposition of dimethyl ether follows first order kinetics\nCH3-O-CH3( g)&#.... | 0:00 | 1 | |
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| 2024-09-27 | The metal rod M is.... | 0:00 | 0 | |
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| 2024-09-27 | Acetophenone on reaction with hydroxylamine hydrochloride can produce two isomeric oximes. Write.... | 0:00 | 0 | |
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| 2024-09-27 | Give reasons in one or two sentences\"Anhydrous HCl is a bad conductor of electricity but aqueou.... | 0:00 | 0 | |
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| 2024-09-27 | Among the following, the correct statement(s) about polymers is/are:.... | 0:00 | 0 | |
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| 2024-09-27 | Find the coordinates of the foot of perpendicular and the perpendicular distance from the point .... | 0:00 | 3 | |
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| 2024-09-27 | The correct order of equivalent conductance at infinite dilution of LiCl. NaCl and KCl is.... | 0:00 | 1 | |
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| 2024-09-27 | The total number of basic groups in the following form of lysine is\n.... | 0:00 | 1 | |
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| 2024-09-27 | Write the chemical equations involved in the following reactions : Rosenmund reduction.... | 0:00 | 1 | |
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| 2024-09-27 | Show with balanced equation what happens when the 'p-xylene is reacted with concentrated sulphur.... | 0:00 | 1 | |
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| 2024-09-27 | Which of the following reactions product(s) propane as a major product? C-16.93 W-45.45 UA-11.42.... | 0:00 | 2 | |
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| 2024-09-27 | All the compounds listed in Column-I react with water. Match the result of the respective reacti.... | 0:00 | 3 | |
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| 2024-09-27 | Write down the structure of the stereoisomers formed when cis-2-butene is reacted with bromine..... | 0:00 | 3 | |
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| 2024-09-27 | HBr reacts fastest with.... | 0:00 | 1 | |
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| 2024-09-27 | Give the structure of the major organic products obtained from 3-ethyl-2-pentene under each of t.... | 0:00 | 3 | |
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| 2024-09-27 | The highest boiling point is expected for:.... | 0:00 | 0 | |
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| 2024-09-27 | When MnO2 is fused with KOH, a coloured compound is formed, the product and its color is.... | 0:00 | 0 | |
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| 2024-09-27 | Parallel plate capacitor of capacitance C has spacing d between two plates having area A. The re.... | 0:00 | 2 | |
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| 2024-09-27 | The shape of(CH3)+ is…...... | 0:00 | 1 | |
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| 2024-09-27 | Which of the following pairs is expected to exhibit the same color in solution?.... | 0:00 | 1 | |
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| 2024-09-27 | Explain briefly the formation of the products giving the structures of the intermediates\n.... | 0:00 | 3 | |
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| 2024-09-27 | The pair of isochoric processes among the transformation of states is.... | 0:00 | 1 | |
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| 2024-09-27 | Arrange the following as indicated. CO2, N2O5, SiO2, SO3 in the order of increasing acidic chara.... | 0:00 | 3 | |
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| 2024-09-27 | An ac is passed through a series LCR circuit. What is the impedance of the circuit at resonance?.... | 0:00 | 1 | |
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| 2024-09-27 | The orbital angular momentum quantum number of the stateS2 is.... | 0:00 | 0 | |
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| 2024-09-27 | Consider an electrochemical cell A(s)Am+(aq,2M)∣B2n+(aq,1M/B(s). The value of ΔH͵.... | 0:00 | 1 | |
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| 2024-09-27 | How can you convert the following?Phenol to phenyl ethanoate..... | 0:00 | 2 | |
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| 2024-09-27 | A diatomic molecule has moment of inertia I. By Bohr’s quantization condition its rotation.... | 0:00 | 2 | |
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| 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 | |
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| 2024-09-27 | Racemisation occurs in .... | 0:00 | 4 | |
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| 2024-09-27 | Assertion :There is no change in the energy of a charged particle moving in a magnetic field alt.... | 0:00 | 1 | |
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| 2024-09-27 | An organic compound E(C5H8) on hydrogenation gives compound F(C5H12). Compound E ozonolysis give.... | 0:00 | 4 | |
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| 2024-09-27 | Give reasons :\n Oxidation of aldehydes is easier than that of ketones..... | 0:00 | 1 | |
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| 2024-09-27 | Two light springs of force constantsk1 andk2 and a block of mass m are in one line AB on a smoot.... | 0:00 | 2 | |
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| 2024-09-27 | For the following reactionCH4(g)+CI2(g)→lightCH3CI(g)+HCl(g) the correct statement is.... | 0:00 | 0 | |
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| 2024-09-27 | An alkyl halide (A) of molecular formula \\(C _6 H _{13} Cl\\) on treatment with alcoholic \\(KO.... | 0:00 | 1 | |
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| 2024-09-27 | A cylinder of mass M and radius R is resting on a horizontal platform (which is parallel to the .... | 0:00 | 3 | |
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| 2024-09-27 | Which of the following halides is least stable and has doubtful existence?.... | 0:00 | 0 | |
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| 2024-09-27 | Write the electronic configuration of \\(\\mathrm{Fe}^{3+}\\) on the basis of crystal field theo.... | 0:00 | 2 | |
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| 2024-09-27 | Give equations of the following reactions :\n Phenol is treated with conc. \\(\\mathrm{HNO}.... | 0:00 | 2 | |
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| 2024-09-27 | Statement-I: Boron always forms covalent bonds.Statement-II: The small size of B3+ favours forma.... | 0:00 | 4 | |
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| 2024-09-27 | Account for the following :(a) Transition elements show variable oxidation states.(b) ECu2+/Cu0 .... | 0:00 | 2 | |
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| 2024-09-27 | For a glass prism, the angle of minimum deviation will be smallest for the light of-.... | 0:00 | 2 | |
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| 2024-09-27 | For the reaction, PCl5(g)⇌PCl3(g)+Cl2(g) the forward reaction at constant temperature is favored.... | 0:00 | 5 | |
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| 2024-09-27 | Two concentric circular coils \\(X\\) and \\(Y\\) of radii \\(r_1\\) and \\(r_2\\left(r_1>r_2.... | 0:00 | 3 | |
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| 2024-09-27 | Complete the following chemical reactions :\n(a) MnO2+4HCl⟶\n(b) XeF6+KF⟶\n(c) I-(.... | 0:00 | 1 | |
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| 2024-09-27 | State true or False\nIn a photoelectric emission process, the maximum energy of the photoelectro.... | 0:00 | 3 | |
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| 2024-09-27 | If \\(\\alpha\\) and \\(\\beta\\) are the roots of \\(x^2+p x+q=0\\) and \\(\\gamma, \\delta\\) .... | 0:00 | 2 | |
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| 2024-09-27 | Iodoform test is not given by:.... | 0:00 | 0 | |
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| 2024-09-27 | Two parallel beams of light P and Q (separation d) containing radiations of wavelengths4000 .... | 0:00 | 0 | |
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| 2024-09-27 | The acidic aqueous solution of ferrous ion forms a brown complex in the presence of NO3-, by the.... | 0:00 | 2 | |
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| 2024-09-27 | Identify which liquid will have a higher vapour pressure at 90°C if the boiling points of t.... | 0:00 | 1 | |
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| 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 | |
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| 2024-09-27 | In the following sequence, product I, J, L are formed , K represents a reagent\n(i) Mg/ether\n\n.... | 0:00 | 1 | |
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| 2024-09-27 | For the reaction \\(3 A \\rightarrow 2 B\\), rate of reaction \\(+\\frac{d[B]}{d t}\\) is equal .... | 0:00 | 1 | |
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| 2024-09-27 | Which of the following reactions will NOT give primary amine as the product?.... | 0:00 | 0 | |
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| 2024-09-27 | Complete the following, giving the structures of the principal organic products\n.... | 0:00 | 1 | |
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| 2024-09-27 | What happens if external potential applied becomes greater than \\(\\mathrm{E}_{\\text {cell }}^.... | 0:00 | 0 | |
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| 2024-09-27 | Find the equation of the plane passing through the point \\((-1,3,2)\\) and perpendicular to the.... | 0:00 | 4 | |
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| 2024-09-27 | Carbon tetrachloride burns in air when lighted to give phosgene.... | 0:00 | 1 | |
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| 2024-09-27 | Which of the following transition metals do not show variable oxidation states?.... | 0:00 | 0 | |
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| 2024-09-27 | What are Homoleptic complexes?.... | 0:00 | 2 | |
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| 2024-09-27 | Among B2H6, B3N3H6, N2O, N2O4, H2S2O3 and H2S2O8, the total number of molecules containing coval.... | 0:00 | 1 | |
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| 2024-09-27 | Give reasons for the following :\nThe only oxidation state shown by Scandium is +3 ..... | 0:00 | 1 | |
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| 2024-09-27 | Assertion (A) : Diamagnetic substances exhibit magnetism.Reason (R) : Diamagnetic materials do n.... | 0:00 | 0 | |
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| 2024-09-27 | An acidic solution of Cu2+salt containing 0.4 g of Cu2+ is electrolysed until all the coppe.... | 0:00 | 0 | |
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| 2024-09-27 | two statements are given - one labelled as Assertion (A) and the other labelled as Reason .... | 0:00 | 2 | |
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| 2024-09-27 | Name the water soluble vitamin which is a powerful antioxidant. Give one of its natural source..... | 0:00 | 0 | |
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| 2024-09-27 | Find the equilibrium constant fer the reactionCu2++In2+⇌Cu++In3+\nGiven thatECu+2/Cu+0-0.1.... | 0:00 | 0 | |
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| 2024-09-27 | Which of the following reactions is a halogenated exchange reaction :.... | 0:00 | 4 | |
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| 2024-09-27 | Define transition elements. Why do transition metals have higher enthalpies of atomisation? Whic.... | 0:00 | 2 | |
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