| 2024-09-24 | In the estimation of sulphur in an organic compound, fuming nitric acid is used to convert sulph.... | 0:00 | 2 | |
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| 2024-09-24 | Trichloroacetaldehyde, CCl3CHO reacts with chlorobenzene in presence of sulphuric acid prod.... | 0:00 | 7 | |
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| 2024-09-24 | Among the following the strongest acid is:.... | 0:00 | 2 | |
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| 2024-09-24 | Trace the changes the parasite undergoes when the host ' \\(\\mathrm{X}\\) ' takes its blood mea.... | 0:00 | 1 | |
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| 2024-09-24 | Which of the following oxidation states is the most common among the lanthanoids?.... | 0:00 | 3 | |
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| 2024-09-24 | Three forces acting on a body are shown in the figure. To have the resultant force only along th.... | 0:00 | 4 | |
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| 2024-09-24 | In Friedel-Craft’s alkylation, besides AlCl3 the other reactants are:.... | 0:00 | 1 | |
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| 2024-09-24 | When a microorganism invades a host, a definite sequence of events usually occur leading to infe.... | 0:00 | 2 | |
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| 2024-09-24 | Which of the following lanthanoid ions is diamagnetic? (Atomic Number Ce=58,Sm=62,Eu=63,Yb=.... | 0:00 | 2 | |
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| 2024-09-24 | The angular velocity and the amplitude of a simple pendulum is ω and a respectively. At a d.... | 0:00 | 5 | |
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| 2024-09-24 | Which one of the following order is wrong, with respect to the property indicated?.... | 0:00 | 3 | |
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| 2024-09-24 | A mutant strain of T4 - bacteriophage, R-II, fails to lyse the E. Coli but when two strains R-II.... | 0:00 | 7 | |
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| 2024-09-24 | Which of the following shows maximum number of oxidation states?.... | 0:00 | 0 | |
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| 2024-09-24 | A fixed thermally conducting cylinder has a radius R and height L0. The cylinder is open at its .... | 0:00 | 35 | |
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| 2024-09-24 | Which one of the following compounds is resistant to nucleophilic attack by hydroxyl ions?.... | 0:00 | 2 | |
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| 2024-09-24 | Which of the following RNAs should be most animal cell?.... | 0:00 | 2 | |
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| 2024-09-24 | Reactivity order of halides for dehydrohalogenation is:.... | 0:00 | 5 | |
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| 2024-09-24 | What is the charge on spheres \\(S _1\\) and \\(S _2\\) after contact?.... | 0:00 | 110 | |
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| 2024-09-24 | The solubility of AgCl will be minimum in:.... | 0:00 | 11 | |
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| 2024-09-24 | The cell membranes are mainly composed of:.... | 0:00 | 2 | |
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| 2024-09-24 | The pH value of blood does not appreciably change by a small addition of an acid or a base,.... | 0:00 | 1 | |
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| 2024-09-24 | Find the angular momentum of an electron revolving in the second orbit in Bohr's hydrogen atom..... | 0:00 | 5 | |
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| 2024-09-24 | The total number of p-bond electrons in the following structure is
.... | 0:00 | 4 | |
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| 2024-09-24 | In an octahedral structure, the pair of d orbitals involved in d2sp3 hybridisation is:.... | 0:00 | 2 | |
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| 2024-09-24 | The correct order of energies of molecular orbitals of N2 molecule is:.... | 0:00 | 0 | |
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| 2024-09-24 | Which of the following graphs correctly represents the variation of a particle momentum with its.... | 0:00 | 7 | |
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| 2024-09-24 | The total number of valence electrons in \(4.2 g\) of N3-ion is NA is the Avogadro's number):.... | 0:00 | 10 | |
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| 2024-09-24 | Which one of the following complexes is not expected to exhibit isomerism?.... | 0:00 | 2 | |
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| 2024-09-24 | An organic compound ' A ' is having a molecular formulaC7H8O . On oxidation with acidified KMnO4.... | 0:00 | 7 | |
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| 2024-09-24 | Identify the semiconductor diode whose V-I characteristics are as shown.\n.... | 0:00 | 1 | |
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| 2024-09-24 | The elements of 3d-transition series are given as:Sc, Ti,V,Cr,Mn,Fe,Co,Ni,Cu,ZnAnswer the follow.... | 0:00 | 1 | |
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| 2024-09-24 | Which one of the following pairs of substances on reaction will not evolve H2 gas?.... | 0:00 | 1 | |
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| 2024-09-24 | (a) Amongst the following which one has the maximum boiling point? n-Pentane, iso-pentane, neo-p.... | 0:00 | 1 | |
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| 2024-09-24 | A 0.5 m long solenoid of 10 turns /cm has area of cross-section 1 cm2. Calculate the v.... | 0:00 | 11 | |
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| 2024-09-24 | Carry out the following conversions :(i) Phenol to Salicylaldehyde(ii) Propene to Propanol.... | 0:00 | 0 | |
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| 2024-09-24 | The equilibrium constant of the reaction:Cu(s)+2Ag+(ag)→Cu2+(aq)+2Ag(s);E°=0.46 .... | 0:00 | 9 | |
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| 2024-09-24 | (a) Why is the IUPAC name and symbol of the element having atomic number 117.
(b) Are the oxidat.... | 0:00 | 5 | |
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| 2024-09-24 | Find:\\[\\int \\frac{\\sin ^3 x+\\cos ^3 x}{\\sin ^2 x \\cos ^2 x} d x\\].... | 0:00 | 1 | |
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| 2024-09-24 | How will you convert benzene into\n(i) Acetophenone (ii) m- Chloronitrobenzene (iii) Toluene?.... | 0:00 | 5 | |
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| 2024-09-24 | An electrochemical cell is set up as: pt,H2(1 atm)∣HCl ((0.1M)‖CH3COOH(0.1M) &#.... | 0:00 | 8 | |
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| 2024-09-24 | The main difference between bathing and washing soap is:.... | 0:00 | 5 | |
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| 2024-09-24 | The probability that A hits the target is \\(\\frac{1}{3}\\) and the probability that B hits it,.... | 0:00 | 1 | |
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| 2024-09-24 | What do you understand about the isoelectronic species? Name a species that will be isoelectroni.... | 0:00 | 8 | |
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| 2024-09-24 | Statement-I: Acid strength increases in the order given as HF << HCl <.... | 0:00 | 6 | |
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| 2024-09-24 | Match the example given in Column I with the name of the reaction in Column II.
.... | 0:00 | 1 | |
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| 2024-09-24 | Three persons \\(A , B\\) and \\(C\\) apply for a job of manager in a private company. Chances o.... | 0:00 | 1 | |
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| 2024-09-24 | Prove that in a common-emitter amplifier, the output and input differ in phase by 180°.In a.... | 0:00 | 2 | |
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| 2024-09-24 | Which of the following compounds will give a yellow precipitate with iodine and alkali?.... | 0:00 | 1 | |
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| 2024-09-24 | The coordinates of the foot of the perpendicular drawn from the point \\((-2,8,7)\\) on the XZ-p.... | 0:00 | 3 | |
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| 2024-09-24 | Evaluate:\\[\\int_0^{\\pi / 4} \\frac{d x}{1+\\tan x}\\].... | 0:00 | 2 | |
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| 2024-09-24 | (a) An electron and a proton are accelerated through the same potential. Which one of the two ha.... | 0:00 | 2 | |
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| 2024-09-24 | Which amongst the following compound/species is least basic?.... | 0:00 | 13 | |
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| 2024-09-24 | An object is placed at a distance of \\(10 cm\\) in front of a concave mirror of radius of curva.... | 0:00 | 19 | |
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| 2024-09-24 | Write reasons for the following :\nAmines behave as nucleophiles..... | 0:00 | 1 | |
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| 2024-09-24 | Find the general solution of the differential equation\\[\\sec ^2 x \\cdot \\tan y d x+\\sec ^2 .... | 0:00 | 2 | |
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| 2024-09-24 | The compound which does not react with sodium is: .... | 0:00 | 0 | |
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| 2024-09-24 | Assertion (A) : The resistance of an intrinsic semiconductor decreases with increase in its temp.... | 0:00 | 3 | |
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| 2024-09-24 | Photoelectrons are emitted from a metal surface when illuminated with UV light of wavelength \\(.... | 0:00 | 7 | |
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| 2024-09-24 | Give reasons :Iron does not rust even if zinc coating is broken in a galvanized pipe..... | 0:00 | 6 | |
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| 2024-09-24 | For (i) I-, (ii) Cl-, (iii) Br-, the increasing order of nucleophilicity would be:.... | 0:00 | 6 | |
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| 2024-09-24 | Calculate the total energy supplied by the batteries to the circuit shown in the figure, in one .... | 0:00 | 12 | |
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| 2024-09-24 | Draw energy band diagrams of n-type and p-type semiconductors at temperature \\(T >0 K\\), de.... | 0:00 | 0 | |
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| 2024-09-24 | Give reasons :Fuel cells are preferred for production of electrical energy than thermal plants..... | 0:00 | 0 | |
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| 2024-09-24 | Consider the following liquid-vapour equilibrium.Liquid ⇌ Vapour. Which of the following relatio.... | 0:00 | 2 | |
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| 2024-09-24 | A manufacturer has employed 5 skilled men and 10 semi-skilled men and makes two models A and B o.... | 0:00 | 3 | |
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| 2024-09-24 | An electron is accelerated from rest through a potential difference of \\(100 \\mathrm{~V}\\). F.... | 0:00 | 4 | |
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| 2024-09-24 | Differentiate \\(\\sec ^{-1}\\left(\\frac{1}{\\sqrt{1-x^2}}\\right)\\) w.r.t. \\(\\sin ^{-1}\\le.... | 0:00 | 1 | |
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| 2024-09-24 | The densities of graphite and diamond at 298 K are 2.25 and 3.31gcm-3, respectively. If the stan.... | 0:00 | 14 | |
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| 2024-09-24 | Find the equation of tangent to the curve \\(y=\\sqrt{3 x-2}\\) which is parallel to the line \\.... | 0:00 | 2 | |
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| 2024-09-24 | A photosensitive surface is illuminated with a beam of (i) yellow light, and (ii) red ligh.... | 0:00 | 1 | |
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| 2024-09-24 | An octagonal prism is a three-dimensional polyhedron bounded by two octagonal bases and eight re.... | 0:00 | 1 | |
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| 2024-09-24 | 2Zn+O2→2ZnO;ΔG°=-616J
2Zn+S22→2ZnS;ΔG°=-293J
S2+2O2→2SO2;&Del.... | 0:00 | 1 | |
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| 2024-09-24 | (a) If \\(|\\vec{a} \\times \\vec{b}|^2+|\\vec{a} \\cdot \\vec{b}|^2=400\\) and \\(|\\vec{b}|=5\.... | 0:00 | 1 | |
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| 2024-09-24 | Briefly explain the generation and the separation of electrons and holes in a solar cell. Write .... | 0:00 | 0 | |
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| 2024-09-24 | The solution of the differential equation \\(\\frac{d x}{x}+\\frac{d y}{y}=0\\) is : .... | 0:00 | 8 | |
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| 2024-09-24 | Equilateral shape has:.... | 0:00 | 3 | |
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| 2024-09-24 | What happens if external potential applied becomes greater than \\(\\mathrm{E}^{\\circ}\\).... | 0:00 | 4 | |
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| 2024-09-24 | (a) Why is an intrinsic semiconductor deliberately converted into an extrinsic semiconductor by .... | 0:00 | 1 | |
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| 2024-09-24 | The electromagnetic radiations used to kill germs in water purifiers are called :.... | 0:00 | 4 | |
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| 2024-09-24 | The correct order of increasing bond length of C-H,C-O,C-C and C=C is:.... | 0:00 | 8 | | Counter-Strike: Source
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| 2024-09-24 | Name the electromagnetic waves which are produced by the following(i) Radioactive decays of nucl.... | 0:00 | 11 | |
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| 2024-09-24 | Light of frequency v is incident on a photosensitive surface of threshold frequency v0v>v0. .... | 0:00 | 1 | | Frequency
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| 2024-09-24 | The value of \\(k\\) for which the function \\(f\\), given by\\(f(x)=\\left\\{\\begin{array}{lll.... | 0:00 | 0 | |
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| 2024-09-24 | When a biconvex lens of glass having refractive index 1.47 is dipped in a liquid, it acts as a p.... | 0:00 | 6 | |
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| 2024-09-24 | A wire of length L0 has a resistance R0. It is gradually stretched till its length becomes 2.... | 0:00 | 13 | |
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| 2024-09-24 | If the frequency of light incident on the cathode of a photo-cell is increased, how will the fol.... | 0:00 | 3 | |
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| 2024-09-24 | Define the following :(a) Associated colloids(b) Electrophoresis(c) Zeta potential.... | 0:00 | 4 | |
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| 2024-09-24 | Give reasons:\n(i) Evaporation of water is endothermic process but it is spontaneous.\n(ii) A re.... | 0:00 | 5 | |
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| 2024-09-24 | An A.C. source with variable frequency is connected to a parallel plate capacitor. How will the .... | 0:00 | 0 | | Counter-Strike: Source
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| 2024-09-24 | A conducting rod of length l is kept parallel to a uniform magnetic field B→. It is moved .... | 0:00 | 4 | |
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| 2024-09-24 | A long wire is bent into a circular coil of one turn, and then into a circular coil of smaller r.... | 0:00 | 7 | |
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| 2024-09-24 | Account for the following:
(a) Halogens have very high negative electron gain
enthalpy
(b) The e.... | 0:00 | 2 | |
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| 2024-09-24 | Describe briefly the construction and principle of a step-up transformer..... | 0:00 | 1 | |
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| 2024-09-24 | If \\(y=\\tan ^{-1} x+\\cot ^{-1} x, x \\in R\\), then \\(\\frac{d y}{d x}\\) is equal to ______.... | 0:00 | 4 | |
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| 2024-09-24 | Assertion: Glucose is a reducing sugar.Reason : Despite having an aldehydic group, glucose does .... | 0:00 | 6 | |
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| 2024-09-24 | Match List-I (Molecules) with List-II (Bond order) and select the correct answer using the codes.... | 0:00 | 3 | |
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| 2024-09-24 | The ground state energy of hydrogen atom is \\(-13 \\cdot 6 \\mathrm{eV}\\). The potential energ.... | 0:00 | 0 | |
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| 2024-09-24 | Give one difference between the following pairs of polymers :Homopolymers and Copolymers.... | 0:00 | 1 | |
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| 2024-09-24 | If the female ' \\(\\mathrm{D}\\) ' marries a normal man, what will be the probability of their .... | 0:00 | 5 | |
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| 2024-09-24 | Few reactions are given below-.... | 0:00 | 4 | |
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