Quiz Hard 3 Categories Quizzes 0 Quiz Hard 3 1 / 30 Which of the following information is obtained from rotational spectra of a molecule? Dipole moment All above Bond distance Atomic mass Molecular structure 2 / 30 Photodimerization of dibenzyl ketone to form dibenzyl and CO is a reaction known as Photoisomenzation Norrish type II reaction Photodimerization Norrish type I reaction 3 / 30 Which of the follows p-block elements are not representative elements Group-14 elements Group-18 elements Alkali metals tillogens 4 / 30 If Ø is the fraction of the surface occupied by adsorbate molecules at equilibrium, then according to the Langmunir theory the rate of condensation is given by ɑØ ɑ (1-Ø) ɑ(1-Ø) p ɑØp 5 / 30 The half-life period of any first order reaction is independent of the initial concentration is half the specific rate reaction is always the same wather the reaction is directly proportional to the reaction 6 / 30 The simplest formula of a compound containing 50% of element X (at. wt = 10) and 50% Y (at. wt = 20) is XY2 XY X2Y3 X2Y 7 / 30 which of the following statement is not correct with respect to applications of Hammett equations? this equations does not help to calculate the rate of some equations it calssifies the substitute into two categories This equation can be used to calculate the value of pKs This equation has mechanicstic implications It develops a quantitative relationship between structure and reactivity 8 / 30 Which of the following is not a characteristic of terpenoids? They are pleasant smelling liquids they are insoluble in water they are steam volatile They are nitrogenous bases 9 / 30 The migration of positively charged colloidal particles, under an electrical field, toward, the cathode is called Electrodialysis Cataphoresis Electrosmosis Sedimentation 10 / 30 Which of the following statements is not correct with the concept of Bronated concept of acids and bases A base can accept a proton An acid can donate a proton This concept is more general This concept has many bases that have OH ions 11 / 30 Which of the following radiation has larger wavelength? Microwave Gamma rays Ultraviolet X-rays 12 / 30 Which of the following is a bridge ridge element P Kolbe-Schmidt reaction ClCH2COOH Be 13 / 30 The nuclei insensitive to nuclear magnetic resonance is 19F H1 H2 16O 14 / 30 Which block of periodic table contains maximum number of metals s- block p-block f-block d-block 15 / 30 A colorless liquid undergoes a rapid and exothermic reaction with water giving a strongly acidic solution.The formula of liquid will be CH3CH2CO2H CH3CHClCHO CH3CH2CONH2 CH3CH2COCl 16 / 30 The polarization in one bowl caused by the polarization dim adjacent bond is called Resonance effect Salt effect Mesomerie effect Inductive effect 17 / 30 The adsorption theory can explain the action of all these except Promoters Heterogeneous Acid-base catalysis Catalytic poisons 18 / 30 A salt solution is treated with chloroform drops. Then it is shaken with chloride water, cholorofporm layers become violet solution contains NO3- ions NO2- ions Br- ions I- ions 19 / 30 Nitrobenzene can be prepared from benzene by using a mixture of cone.HNO3 and cone H2SO4, in the nitrating mixture, HNO3 acts acid base catalyst oxidizing agent 20 / 30 Which of the following stats is not correct regarding Langmunir adsorption theory? Adsorbed molecules cannot interact with eachother One sits can adsorb only one molecule Adsorbent has specific equivalent sites Adsorption is a static process 21 / 30 Lothar Meyer plotted n graph showing variation of Atomic volume with increase in atomic weight Atomic volume with increase in atomic number Atomic weight with increase in atomic number. Atomic radii with increase in atomic weight 22 / 30 At the same temperature, 0.1 M solution of urea is isotonic with 0.1 M BaC12 solution 0.1 M NaCI solution 0.05 M urea solution 0.1 M glucose solution 23 / 30 A tren which is vommon to element of both the group IA and group VIIA going from top to bottom Boiling point increases Ionization energy decreases Oxidising power increases Electron affinity increases 24 / 30 Which of the following statements is not correct? Among alkali metals, reducing character increases down the group Fluorine is the most electronegative element Lithium in the hardest metal among alkali metal Among halogens, oxidising behavior increases down the group 25 / 30 Atomic radii of fluorine and neon in Angstrom units are respectively given by 0.72, 0.72 1.60. 1.60 none of these 0.72, 1.60 26 / 30 Which of the following pair of compound, cannot be distinguished on the basis of UV spectra? Acetaldehyde and benzaldehyde Benzene and naphthalene Ethyl format and methyl acetate 1,3-Pentadiene and 1,4-Pentadierie 27 / 30 Which of the following statement is not related to collision theory? Molecules must have proper orientation Molecules must possess a minimum amount of energy Molecule must collide with each other to do a chemical reaction Collision theory is applicable to liquids only 28 / 30 Which of the following acids have high pK. value? ClCH2COOH FCH2COOH H2O CH3COOH 29 / 30 cholcogens are elements of group 15 13 14 16 30 / 30 Which one of the following is natural polymer Buna-S, SBR Starch Nylon-6 Neoprene 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
