| 2024-09-27 | Draw the graph between vapour pressure and temperature and explain the elevation in boiling poin.... | 0:00 | 3 | |
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| 2024-09-27 | A buffer solution can be prepared from a mixture of.... | 0:00 | 1 | |
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| 2024-09-27 | A conducting sphere S1 of radius r is attached to an insulating handle. Another conducting spher.... | 0:00 | 0 | |
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| 2024-09-27 | A train is moving along a straight line with a constant acceleration a. A boy standing in the tr.... | 0:00 | 6 | |
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| 2024-09-27 | What happens when D-glucose is treated with the following ? Give equations to support your answe.... | 0:00 | 0 | |
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| 2024-09-27 | If the anti-neutrino had a mass of3eV/c2 (wherec is the speed of light) instead of zero mass, wh.... | 0:00 | 1 | |
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| 2024-09-27 | The work done in carrying a point charge from one point to another in an electrostatic field dep.... | 0:00 | 3 | |
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| 2024-09-27 | tpugty2d81iazn2a0l6vnltvn.... | 0:00 | 2 | |
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| 2024-09-27 | A long horizontal conductor carries a current of \\(30 \\mathrm{~A}\\), in east to west directio.... | 0:00 | 5 | |
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| 2024-09-27 | A point object is placed at a distance of20 cm from a thin plano-convex lens of focal lengt.... | 0:00 | 0 | |
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| 2024-09-27 | A student is performing an experiment using a resonance column and a tuning fork of frequency 24.... | 0:00 | 3 | |
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| 2024-09-27 | A small object is placed50 m to the left of a thin convex lens of focal length 30 cm. .... | 0:00 | 1 | |
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| 2024-09-27 | Describe Hinsberg method for the identification of primary, secondary and tertiary amines..... | 0:00 | 1 | |
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| 2024-09-27 | The magnitude of q1 is ............ | 0:00 | 5 | |
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| 2024-09-27 | Some physical quantities are given in Column-I and some possible SI units in which these quantit.... | 0:00 | 3 | |
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| 2024-09-27 | Read the following questions and answer as per the direction given below:Statement-I: p-hydroxyb.... | 0:00 | 2 | |
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| 2024-09-27 | The rate constant for a first order reaction is 40s-1. How much time will it take to reduce the .... | 0:00 | 1 | |
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| 2024-09-27 | A parallel plate capacitor of capacitance C has spacing d between two plates having area A. The .... | 0:00 | 2 | |
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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 | A boy is pushing a ring of mass 2 kg and radius 0.5 m with a stick as shown in the figure. The s.... | 0:00 | 2 | |
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| 2024-09-27 | Write two differences between Order of reaction and Molecularity of reaction..... | 0:00 | 16 | |
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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 | How can you convert the following?Phenol to phenyl ethanoate..... | 0:00 | 2 | |
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| 2024-09-27 | (a) Give three points of difference between lanthanoids and actinoids.\n(b) Give reason and sele.... | 0:00 | 1 | |
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| 2024-09-27 | For an electron orbiting in the ground state of a hydrogen atom, what is the relation between ra.... | 0:00 | 1 | |
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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 | Racemisation occurs in .... | 0:00 | 4 | |
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| 2024-09-27 | At the surface of a charged conductor, why must the electrostatic field be normal to the surface.... | 0:00 | 1 | |
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| 2024-09-27 | Development of recombinant DNA technology has opened gates to many breakthroughs in the fields o.... | 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 | Give reasons :\n Oxidation of aldehydes is easier than that of ketones..... | 0:00 | 1 | |
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| 2024-09-27 | What should be the age of a fossil for meaningful determination of its age?.... | 0:00 | 0 | |
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| 2024-09-27 | The area bounded by the curvesy=(x-1)2,y=(x+1)2andy=14is.... | 0:00 | 4 | |
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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 | 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 | Letf(0,∞)→R be a differentiable function such thatf'(x)=2-f(x)x for allx∈(0,&inf.... | 0:00 | 0 | |
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| 2024-09-27 | MgSO4 on reaction with NH4OH and Na2HPO4 forms a white crystalline precipitate. What is its form.... | 0:00 | 2 | |
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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 | 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 | The diagonals of a parallelogramPQRS are along the linesx+3y=4 and6x–2y=7 . Then,PQRS must.... | 0:00 | 1 | |
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| 2024-09-27 | Considering the reaction sequence given below, the correct statement(s) is/are:\n.... | 0:00 | 3 | |
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| 2024-09-27 | orie4whk839n4hxh6x9dh3dmx.... | 0:00 | 52 | |
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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 | 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 | Explain briefly the formation of the products giving the structures of the intermediates.\n.... | 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 | 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 | 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 | Complete and balance the following reactions.(i)Mn2+PbO2→MnO4-+H2O(ii)Ag++AsH3→H3AsO2+.... | 0:00 | 0 | |
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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 | 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 | Extraction of zinc from zinc blende is achieved by.... | 0:00 | 0 | |
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| 2024-09-27 | Complete and balance the following reactionNH42S2O8+H2O+MnSO4⟶…..+….+…..... | 0:00 | 0 | |
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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 | 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 | 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 | Which of the following alloys contains Cu and Zn.... | 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 | 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 | 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 | Match the reactions (in the given stoichiometry of the reactants) in List-I with one of their pr.... | 0:00 | 1 | |
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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 | Complete the following, giving the structures of the principal organic products\n.... | 0:00 | 1 | |
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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 | Statement-I: Addition ofBr2 to 1-butene gives two optical isomers.Statement-II: The product cont.... | 0:00 | 0 | |
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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 | Carbon tetrachloride burns in air when lighted to give phosgene.... | 0:00 | 1 | |
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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 | Which of the following has the most acidic hydrogen?.... | 0:00 | 0 | |
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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 | 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 | 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 | Among the following compounds, the strongest acid is.... | 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 | 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 | 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 | The hydrolysis of alkyl substituted chlorosilanes 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 | 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 | 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 | Identify the correct order of acidic strength of CO2,CuO,CaO,H2O.... | 0:00 | 1 | |
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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 | Monomer A of a polymer on ozonolysis yields two moles of HCHO and one mole of CH3COCHO.(a) Deduc.... | 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 | One mole of N2O4(g) at 300 K is kept in a closed container under one atmosphere. It heated to 60.... | 0:00 | 3 | |
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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 | The total number(s) of stable conformers with non-zero dipole moment for the following compound .... | 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 | Results of calculations for four different designs of a fusion reactor using D-D reaction are gi.... | 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 | Polarisation of electrons in acrolein may be written as.... | 0:00 | 0 | |
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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 | An optical bench has1.5 m long scale having four equal divisions in each cm. While measurin.... | 0:00 | 2 | |
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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 | The basic nature of the hydroxides of group 13 (III B) decreases progressively down the group..... | 0:00 | 1 | |
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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 | State the conditions under which the following preparation is carried out. \"Aniline from benzen.... | 0:00 | 1 | |
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| 2024-09-27 | Consider the reaction : H12+H12=H24e+Q. Mass of the deuterium atom =2.0141u. Mass of helium atom.... | 0:00 | 0 | |
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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 | ( \\(\\pm\\) ) 2-phenylpropanoic acid on treatment with ( + ) 2-butanol gives (A) and (B). Deduc.... | 0:00 | 0 | |
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