| 2024-09-27 | A point source in air is kept \\(24 cm\\) in front of a concave spherical glass surface \\(\\lef.... | 0:00 | 3 | |
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| 2024-09-27 | Define vitamins and classify them on the basis of their solubility..... | 0:00 | 3 | |
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| 2024-09-27 | In photoelectric effect, does the photoelectric current depend on the intensity of incident radi.... | 0:00 | 0 | |
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| 2024-09-27 | Define wavefront of a travelling wave. Using Huygens principle, obtain the law of refraction at .... | 0:00 | 2 | |
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| 2024-09-27 | Give reasons :Rate of a reaction increases with rise in temperature..... | 0:00 | 0 | |
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| 2024-09-27 | Name the electromagnetic radiation used in eye surgery or to kill germs in water purifiers. Writ.... | 0:00 | 1 | |
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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 | With the help of the circuit diagram, explain briefly the working of a photodiode..... | 0:00 | 1 | |
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| 2024-09-27 | Define the angle of inclination at a given place due to earth’s magnetic field..... | 0:00 | 0 | |
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| 2024-09-27 | Hardening of leather in tanning industry is based on:.... | 0:00 | 1 | |
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| 2024-09-27 | Scientists tried to develop a single plant exhibiting the characteristic of tomato and potato by.... | 0:00 | 1 | |
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| 2024-09-27 | How does the energy gap of an intrinsic semiconductor change when doped with a trivalent impurit.... | 0:00 | 3 | |
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| 2024-09-27 | Value of Henry's constant \\(K_H\\) : .... | 0:00 | 0 | |
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| 2024-09-27 | A white substance A reacts with dilute H2SO4 to produce a colourless gas B and a colourless solu.... | 0:00 | 0 | | Colourless
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| 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 | |
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| 2024-09-27 | The oxidation state of \\(Fe\\) in \\(\\left[ Fe ( CO )_5\\right]\\) is .... | 0:00 | 0 | |
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| 2024-09-27 | Which of the following statement(s) is/are correct when a mixture of NaCl and K2Cr2O7 is gently .... | 0:00 | 2 | |
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| 2024-09-27 | Cyclohexene on ozonolysis followed by reaction with zinc dust and water gives compound E. Compou.... | 0:00 | 0 | |
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| 2024-09-27 | How do you convert the following:\nAnisole to 2-methoxyacetophenone\n\n\n.... | 0:00 | 0 | |
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| 2024-09-27 | The reaction sequence(s) that would lead to o-xylene as the major product is (are).... | 0:00 | 1 | |
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| 2024-09-27 | The major product of the following reaction sequence is\n.... | 0:00 | 5 | |
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| 2024-09-27 | Write the role of coordination compounds with an example in each of the following :\n Biolo.... | 0:00 | 39 | |
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| 2024-09-27 | Among the following ions, which one has the highest paramagnetism?.... | 0:00 | 1 | |
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| 2024-09-27 | In the complex acetylbromidodicarbonylbis (triethylphosphine) iron (II), the number of Fe—.... | 0:00 | 0 | |
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| 2024-09-27 | Clemmensen Reduction of aldelydes and ketonic carbonyl groups into methylene group is effe.... | 0:00 | 1 | |
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| 2024-09-27 | The ionization isomer of [Cr(H2O)4(Cl)(NO2)]Cl.... | 0:00 | 4 | |
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| 2024-09-27 | Statement - I : Zn2+ is diamagnetic.Statement - II : The electrons are lost from 4s orbital to f.... | 0:00 | 1 | |
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| 2024-09-27 | Define rate constant and give the mathematical relation between rate constant and half-life peri.... | 0:00 | 0 | |
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| 2024-09-27 | Give the coordination number ofAl in the crystalline state ofAlCl₃..... | 0:00 | 1 | |
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| 2024-09-27 | Write the balanced equations involved in the preparation of(i) bleaching powder from slaked lime.... | 0:00 | 0 | |
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| 2024-09-27 | There exists a ∆ABC satisfying the conditions.... | 0:00 | 2 | |
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| 2024-09-27 | Methylene blue, from its aqueous solution, is adsorbed on activated charcoal at 25°C. For th.... | 0:00 | 1 | |
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| 2024-09-27 | The increase in solubility of iodine in aqueous solution of KI is due to the formation of ____.... | 0:00 | 2 | |
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| 2024-09-27 | Outline a synthesis of \\(\\mathrm{p}\\)-bromonitrobenzene from benzene in two steps..... | 0:00 | 0 | |
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| 2024-09-27 | Write the structure of the major organic product expected from the following reaction\n.... | 0:00 | 1 | |
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| 2024-09-27 | The radiation from a naturally occurring radioactive substance, as seen after deflection by a ma.... | 0:00 | 0 | |
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| 2024-09-27 | State the equation for the preparation of following compound. Chlorobenzene from aniline (in 2 s.... | 0:00 | 1 | |
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| 2024-09-27 | Statement-I Pb4+ compounds are stronger oxidising agents than Sn2+ compounds.Statement-II The hi.... | 0:00 | 0 | |
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| 2024-09-27 | The value of y is ________.... | 0:00 | 0 | |
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| 2024-09-27 | How will you bring about the following conversions? “Benzamide from nitrobenzene”.... | 0:00 | 3 | |
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| 2024-09-27 | H3BO3 is.... | 0:00 | 539 | |
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| 2024-09-27 | Consider the three solvents of identical molar masses. Match thei boiling point with their K, va.... | 0:00 | 0 | |
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| 2024-09-27 | The order of reactivity of phenyl magnesium bromide with the following compounds is\n.... | 0:00 | 0 | |
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| 2024-09-27 | A rod of length2cm makes an angle2π3rad with the principal axis of a thin convex lens. The .... | 0:00 | 3 | |
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| 2024-09-27 | Write down the main product of the following reactionBenzene→CH3CH2COCl/AlCl3.... | 0:00 | 1 | |
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| 2024-09-27 | Aryl halides are less reactive than alkyl halides towards nucleophilic reagents. Give a reason..... | 0:00 | 0 | |
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| 2024-09-27 | A biconvex lens of focal lengthf forms a circular image of radiusr of sun in focal plane. Then w.... | 0:00 | 2 | |
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| 2024-09-27 | When cyclohexane is poured on water. it floats because.... | 0:00 | 0 | |
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| 2024-09-27 | Which of the following has the highest nucleophilicity?.... | 0:00 | 0 | |
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| 2024-09-27 | A ray of light is incident on a prism ABC of refractive index3 as shown in figure.\n\n(a) Find t.... | 0:00 | 0 | |
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| 2024-09-27 | The value of n in the molecular formula BenAl2Si6O18 is .... | 0:00 | 8 | |
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| 2024-09-27 | Geometrical shapes of the complexes formed by the reaction of Ni2+ with Cl–, CN– and.... | 0:00 | 0 | |
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| 2024-09-27 | Shown in the figure is a semicircular metallic strip that has thickness t and resistivity ρ..... | 0:00 | 4 | |
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| 2024-09-27 | For the reaction, H2(g)+I2(g)⇌2HI(g) the equilibrium constant Kp changes with.... | 0:00 | 1 | |
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| 2024-09-27 | Dilute HCl oxidizes metallic Fe to Fe+2.... | 0:00 | 1 | |
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| 2024-09-27 | Two identical metallic spheres of exactly equal masses are taken. One is given a positive charge.... | 0:00 | 0 | |
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| 2024-09-27 | For a reaction, A⇌P, the plots of [ A ] and [ P ] with time at temperatures T1 and T2 are given .... | 0:00 | 3 | |
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| 2024-09-27 | Rate of physisorption increases with.... | 0:00 | 1 | |
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| 2024-09-27 | A wire of length L and cross-sectional area A is made of a material of Young's modulus Y. If the.... | 0:00 | 2 | |
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| 2024-09-27 | n-butane is produced by monobromination of ethane followed by Wurtz's reaction. Calculate volume.... | 0:00 | 2 | |
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| 2024-09-27 | At 380° C, the half-life period for the first order decomposition of H2O2 is 360 min. .... | 0:00 | 0 | |
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| 2024-09-27 | 3. Block A of mass m and block B of mass 2m are placed on a fixed triangular wedge by means of a.... | 0:00 | 3 | |
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| 2024-09-27 | In the nuclear process,C611→B511+β++X,X stands for................. | 0:00 | 1 | |
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| 2024-09-27 | The standard reduction-potential for the half-cellNO3(aq)+2H++e-→NO2( g)+H2O is&.... | 0:00 | 1 | |
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| 2024-09-27 | w0l6l0qg3ycu0ylx31qv8cdmh.... | 0:00 | 11 | |
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| 2024-09-27 | A plano-convex lens is made of material of refractive index n. When a small object is placed30&#.... | 0:00 | 1 | |
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| 2024-09-27 | Write the balanced equation for the preparation of crystalline silicon from SiCl4..... | 0:00 | 0 | |
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| 2024-09-27 | Which structural unit present in a detergent makes it non-biodegradable ?.... | 0:00 | 0 | |
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| 2024-09-27 | A wire ABCDEF (with each side of length L) bent as shown in figure and carrying a current I is p.... | 0:00 | 0 | |
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| 2024-09-27 | The equilibrium SO2Cl2(g)⇌SO2(g)+Cl2(g) is attained at 25°C in a closed container and an ine.... | 0:00 | 1 | |
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| 2024-09-27 | Identify the monomers in the following polymers :\n.... | 0:00 | 1 | |
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| 2024-09-27 | 25ev1094v89hmwo2rtj4ce89s.... | 0:00 | 35 | |
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| 2024-09-27 | A ray of light is incident at an angle of60° on one face of a prism which has an angle of 3.... | 0:00 | 0 | |
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| 2024-09-27 | How do you convert the following:\nEthanol to propan-2-ol.... | 0:00 | 0 | |
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| 2024-09-27 | What is the structural difference between white phosphorus and red phosphorus?.... | 0:00 | 0 | |
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| 2024-09-27 | What is the disadvantage of this system ?.... | 0:00 | 2 | |
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| 2024-09-27 | Write the hybridisation and magnetic character of the following complexes :(i) \\(\\left[\\mathr.... | 0:00 | 2 | |
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| 2024-09-27 | How do you convert the following :\nBenzoic acid to aniline.... | 0:00 | 0 | |
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| 2024-09-27 | The displacement of the medium in a sound wave is given by the equationy1=Acos(ax+bt) where A, a.... | 0:00 | 0 | | The Medium
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| 2024-09-27 | Which one among the following bases is present in RNA but usually not in DNA?.... | 0:00 | 2 | |
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| 2024-09-27 | Among all the isomers of molecular formula \\(\\mathrm{C}_4 \\mathrm{H}_9 \\mathrm{Br}\\), ident.... | 0:00 | 5 | |
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| 2024-09-27 | CH32C=CHCOCH3 can be oxidized to CH32C=CHCOOH by:.... | 0:00 | 0 | |
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| 2024-09-27 | Calculate the number of unpaired electrons in the following gaseous ions :\\[Mn ^{3+} \\text { a.... | 0:00 | 1 | |
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| 2024-09-27 | Laminated iron sheets are used to minimize________ currents in the core of a transformer..... | 0:00 | 0 | |
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| 2024-09-27 | Reaction of propanamide with ethanolic sodium hydroxide and bromine will give.... | 0:00 | 1 | |
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| 2024-09-27 | The ore having two different metal atoms is.... | 0:00 | 4 | |
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| 2024-09-27 | Which of the following statements is not correct according to Rutherford model?.... | 0:00 | 1 | |
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| 2024-09-27 | Write the structures of monomers used for getting the following polymers :\n Nylon-6.... | 0:00 | 0 | |
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| 2024-09-27 | All the lanthanoids show +3 as the common oxidation state, yet \\(Ce\\) shows +4 state because.... | 0:00 | 3 | |
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| 2024-09-27 | Obtain the expression for cyclotron frequency and show that it is independent of the energy of t.... | 0:00 | 0 | |
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| 2024-09-27 | The nucleus Y92235, initially at rest, decays into X90231 by emitting an α-particle\nY92235.... | 0:00 | 2 | |
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| 2024-09-27 | A sodium salt of an unknown anion when treated with MgCl2 gives white precipitate only on boilin.... | 0:00 | 3 | |
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| 2024-09-27 | If \\(\\mathrm{A}\\) is a square matrix of order 3 , such that \\(\\mathrm{A}(\\operatorname{adj.... | 0:00 | 3 | |
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| 2024-09-27 | Two resistors R1 and R2 of 4Ω and 6Ω are connected in parallel across a battery. The r.... | 0:00 | 1 | |
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| 2024-09-27 | Hydrogenation of benzoyl chloride in the presence of \\(\\mathrm{Pd}_{\\text {on }} \\mathrm{BaS.... | 0:00 | 1 | |
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| 2024-09-27 | The coordination number of \\(\\mathrm{Ag}\\) in \\(\\left[\\mathrm{Ag}\\left(\\mathrm{NH}_3\\ri.... | 0:00 | 2 | |
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| 2024-09-27 | If \\(\\mathrm{f}(x)=x^4-10\\), then find the approximate value of \\(\\mathrm{f}(2.1)\\)..... | 0:00 | 2 | |
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| 2024-09-27 | Give a chemical test to distinguish between methanol and ethanol..... | 0:00 | 5 | |
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| 2024-09-27 | Assertion (A): Zinc is not regarded as a transition element.Reason (R): \\(\\quad\\) In zinc, \\.... | 0:00 | 1 | |
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| 2024-09-27 | Out of the following transition elements, the maximum number of oxidation states are shown by:.... | 0:00 | 5 | |
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