Quiz Hard 3 Categories Quizzes 0 Quiz Hard 3 1 / 30 Which of the following iao-electronic would require least energy for the removal of electron? Cl- K+ Ar Ca2+ 2 / 30 Mass spectrometry studies the spectrum of positively charged ions neutral radical Negatively charged ions all these 3 / 30 Phenol on reaction with ethanoic anhydride in the presence of sodium ethanoate give Phenyl methyl ether Phenyl ethanoate Ethyl benzoate Phenyl benzoate 4 / 30 Glyptal is a copolymer of Phthalic acid and glycerol Terephthabc acid and glycerol Phthalic acid and glycol Terephthalic acid and glycol 5 / 30 Sea water is converted into fresh into, hosed upon the phenomenon of Diffusion Reverse osmosis Plasmolysis Osmosis Sedimentation 6 / 30 Which of the following alkyl halide undergoes nucleophilic subsitutions reaction via formation of a carbocation? 2- choloro 2-choloro methyl propane 1- cholo 2-choloro methyl propane 2-choloro butane 1- cholo3-3 dimethyl propane 7 / 30 The polarization in one bowl caused by the polarization dim adjacent bond is called Mesomerie effect Salt effect Inductive effect Resonance effect 8 / 30 cholcogens are elements of group 14 13 16 15 9 / 30 The enrichments of chemical substance at the surface of a solid is called Absorbtion Isotherm Adsorption Sorption 10 / 30 The element Uuu has atomic number 111 101 102 110 11 / 30 The energy aesociated with photon of light is c= nl E=hc E=hn E=mc2 12 / 30 When a strong beam of light is passed through a colloidal solution, the light will Be scattered Be reflected Be dispersed Pass unchanged 13 / 30 which of the following does not belong to the group of herocyclic dyes? Amide black Cyanine methylene blue Acndine 14 / 30 Which of the following statements is not correct in respect a Arrhenius concept? 1-1+ ion cannot remain as such in water This concept is applicable only for aqueous systems Neutralization takes place in aqueous medium only This concept 18 applicable for non-aqueous systems only 15 / 30 In dilute solution s the relative lowering of vapours pressure (Ñp/p° ) is related to osmotic pressure (π) by the relation Ñp/p° = π Ñp/p° = πRt/V Ñp/p° = πRt Ñp/p° = πV/Rt 16 / 30 In the modern periodic table, the period indicates the value of Principal quantum number Atomic mass Azimuthal quantum number Atomic number 17 / 30 The light absorbed in IN and 'viaillle region causes Vibrational energy charges All of these Electronic excitation Rotationnl energy changes 18 / 30 The first ionization energy of Mg in lower than Be Na Ca Al 19 / 30 In a period, the element with highest electron affinity belongs to Group2 Group 17 Group 1 Group 18 20 / 30 Which one of the following is natural polymer Neoprene Starch Buna-S, SBR Nylon-6 21 / 30 Which of the following dyes obtained from madder root Indanthrene Indigotin Alizarin Acriflavin 22 / 30 How many normal modes of vibration are possible for NH3 molecule? 4 5 6 3 2 23 / 30 The addition of HCI to 2-pentene gives 2-chloropentyne 2-chloropentane 3-chloropentane 2-chloro-2-methyl butane 24 / 30 1-Butyne on oxymercuratioin- demercuration would give Butanal Butanone Propanol and methyl Propanic acid and formic acid 25 / 30 How many normal modes of vibration are possible for CO2 molecule? 1 4 3 2 26 / 30 the number of ring and double bonds in a positive ions having C7H7 is two ring+1 double bond one ring+3 double bonds One ring+2 double bonds two ring+3 double bonds 27 / 30 Which will form lactone on treatment with NaOH δ-Bromo acid β-hydroxyl acid β-Bromo acid α-Bromo acid 28 / 30 Anything that influences the valence electrons will affect the chemistry of the element. Which of the following factor. it not affect the valence shell? Valence principle quantum number Nuclear charge Number of core electrons. Nuclear mass 29 / 30 The relative lowering of vapour pressure of a solution on the addition of non-volatile solute Depends upon the mole fraction of the solvent Is equal to the mole fraction of solute Is equal to the sum of the mole fraction of the solute and solvent Depends upon the nature of the solute and solvent Depends upon the nature of the solute 30 / 30 The substance on whose surface adsorption takes palce is called Adsorbent Active substance Adsorbate Porous substance 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
