Quiz Hard 3 Categories Quizzes 0 Quiz Hard 3 1 / 30 For monodisperse systems ̅ M'n > M'w M'n >=M'w M'n= M'w M'w > M'n 2 / 30 Which of the following radiation has high frequency? Rndiowaves Gamma rays X-rays Infrared Microwaves 3 / 30 The vitamin which is related to sastosacchandes in Vdamm D Vitamin C Vitamin E Vitamin A 4 / 30 For a reaction of type A+ B ® product is Products It is observed that doubling the concentration of A causes the reaction rate to be four times as great. but doubling the amount of B there is no apparent affect on the rate. The rate equation is Rate = k |A| |B| Rate = k |A|2 Rate = k |A|2 |B| Rate = k |A|2 |B|2 5 / 30 which of the following elements would have ionization energy ((Ej) ? Mg Li Ca Rb 6 / 30 The element having electronic configuration [Kr) 4d10,4f14. 5s2, 5p6, 5dT,6s2 belongs to f-block p-block s-block d-block 7 / 30 Which of the following dyes belongs to the group of acridine dyes Cyanine Alizarin Indigotin Acriflavin 8 / 30 Acetic anhydride can be most conveniently prepared in the labortry by Heating acetic acid with concentrated sulphuric acid Passing the vapour of acetic acid over hot calcium oxide Heating together anhydrous sodium acetate and acetyl chloride Heating together anhydyrous sodium acetate and chloroacetic acetic 9 / 30 Which one of the following ampound can be monomer of rubber? Carbocation Free radical Carbanion Carbene 10 / 30 A collooidal system in which a liquid is a dispersed in a solid is called emulsion sol precipitate gel 11 / 30 Which of the following is a triphenylrnethane dye? crystal violet fast green O fluorescein Auramine G 12 / 30 Chlorination of toluene in the presence of light and heat followed by treatment with aqueous NaOH gives p-cresol o-cresol ,4-dihydroxy toluene Benzoic acid 13 / 30 Toulene is o/p - orienting with respect to an eltrophilic subatitution reaction due to .+1 effect of the methyl group hyper conjugation between the methyl and penyl ring .+1 as well as +R effect of the ,methyl group 14 / 30 The terpenoid responsible for the smell of rose is Geranial Citral Camphor Carvone 15 / 30 Which of the following is not characteristics of terpenoids They are nitrogen bases They are steam volatile They are insoluble in water They are pleasant smelling liquids 16 / 30 For a reaction of the type (around order A) A----- Product if the initial concentration of A in a and at given time t, the concentration of product is x. the rate conatant (k) can he put an k= 1/t[1/(a-x) -1/n] k= t (a-x) k= t[1/(a-x) -1/n] k= 1/t[1-x/a] 17 / 30 Which of the following expressions represent the Arrhenius equation k=A e -Ea/T k= e -Ea/RT k=A e -Ea/T k=A e -Ea/RT 18 / 30 which of the following is not an example of homogeneous catalysis CH3COOCH3 +H3O H+® CH3OH + CH3COOH CH3COOC2H5 +H2O OH- ® CH3COOH + C2H5OH SO2 + 1/2O2 No® SO3 SO2 + 1/2O2 Pt® SO3 19 / 30 The addition of HCI in the presence of peroxide does not follow anti-Markovnikov's flak because ) CI combines with FI to give bock HCI Cl atom is not reactive enough to add on to a double bond ( HCI bond is too strong to be broken homolytically HCI is n reducing agent 20 / 30 Spinning proton can take up how many orientations in an applied magnetic field 4 6 2 1 21 / 30 In a one-component system, the maximum number of phase that can coexist in equilibrium is 2 4 1 3 22 / 30 Suppose that the rate law reaction is Rate = k [A] [B] and the initial concentration of A and B are equal. If C represents the concentration of both A and B at any time t, a straight line will be obtained if 1/C2 is plotted against t Log C is plotted against t 1/C is plotted against t Log C2 is plotted against t 23 / 30 The freezing point of a solvent Will decrease on adding a solute May increase or decrease depending upon the nature of solute Will increase on adding a solute Will not change on adding solute 24 / 30 For the reaction 2SO2 + O2 «2SO3 the rate of O2 is 2.0 * 10-4 mol -1 s-1. the rate of apperarences of SO3 is 1.0 * 10 -4 mol l -1 s -2 2.0 * 10 -4 mol l -1 s -2 4.0 * 10 -4 mol l -1 s -2 6.0 * 10 -4 mol l -1 s -2 25 / 30 All steroids on heating with selenium give Cholesterol Diets hydrocarbon Isoprene Phenanthrene 26 / 30 Recryetallization in the moot common technique of purification of solid organic substances. Which of the following statements is not related with characteristics of a suitable solvent It does dissolve the impurities It does not react chemically with substance It does not dissolve the impurities at all ) It readily allows it to separate out in 1 he form of crystal on cooling It dissolves the substance on heating 27 / 30 Atomic radii of fluorine and neon in Angstrom units are respectively given by 1.60. 1.60 0.72, 0.72 0.72, 1.60 none of these 28 / 30 The correct order of electron affinities of Si, P and CI is Si>P>Cl Cl>P>SI Cl>Si>P P>Si>Cl 29 / 30 Sulphur can exist in Three Phase Four Phase One phase Two phase 30 / 30 Which of the following does not represent Lewis acid? BF3 FeC13 BuLi CH3COOH ZnCl2 Your score is Share: Quiz Dad Previous post Quiz Hard 2 October 1, 2022 Next post Quiz Hard 4 October 1, 2022 You may also like Quiz Hard 5 1 October, 2022 Quiz Hard 4 1 October, 2022 Quiz Hard 2 1 October, 2022