Quiz Hard 3 Categories Quizzes 0 Quiz Hard 3 1 / 30 The difference between the incident and scattered frequencies in the Raman spectrum in called the Stokes law P-branch Anti-Stoke's law Raman frequency 2 / 30 The rate constant of a reaction depends on temperature Concentration of products time Concentration of reactants pressure 3 / 30 The absorption of light by molecules undergoing photochemical reaction generally results in Heterolytic fission Phosphorescence Homolytic fission Fluorescence 4 / 30 The kinetics of the decompositions of ammonia on the tungsten surface follows Zero order Second order Third order First order 5 / 30 alpha-terpineol is obtained on hydration of which of the following with dilute H2SO4. Citral Myrcene Limonene Linalool 6 / 30 The correct order of electron affinities of Si, P and CI is Si>P>Cl Cl>Si>P Cl>P>SI P>Si>Cl 7 / 30 The phase rule was deduced by Hennry Gibbs Thomsan Troution 8 / 30 Which of the following statetnents is not correct? In each period the element with lowest I E belongs to group 1. In the second period, as we move from left to right, ionization energy increases regularly In each period the element with highest IE is a noble gas The element with highest 15 belongs to group 18 9 / 30 Which of the following statment regarding phenols is not correct Phenols are weaker acids than carboxylic acids Phenoxides ions are more stable than the corresponding phenols Phenols are soluble in both aqueous Na0H and aqueous sodium hydrogen carbonate Phenols are stronger acids than Water 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 This concept has many bases that have OH ions An acid can donate a proton This concept is more general 11 / 30 The correct order of electron affinities is CI>Si>Na>Ar Cl > Si >Ar > Na CI>Na>Si>Ar Si > CI > Na > Ar 12 / 30 Weak acids have Ka value <10-5 >10-5 >10-4 <10-4 13 / 30 When the colourless liquid chlorobenzene is shaken with bromine water, the chlorobenzene becomes a yellow-orange colour. Which of the following is the best interpretation of this? A hydrogen atom has been replaced by a bromine atom An addition compound of chlorobenzene and bromine has been formed The bromine is more soluble in chlorobenzene than in water The chlorine atom has been replaced by a bromine atom 14 / 30 Which of the following is an azo dye? Congo red Paraosaniline Ertythrocin Rhodamine B 15 / 30 the emulsions. the dispersed phase and the dispersion medium are both liquid both solids both gases phase is liquid and medium is solid 16 / 30 In a system, when the chemical potential of each component is the same for all phases, the equilibrium is said to be in Thermal equilibrium Metastable equilibrium Composition equilibrium Mechanical equilibrium 17 / 30 Which one of the following is used to make non-stick material? Vinyl cyanide Styrene Tetrafluoroethene Vinyl chloride 18 / 30 If R1 and R2 are the rates of reactions at concentration C1 and C2 then the order of the reaction (n) with respect to the reactant under consideration (keeping other factors mach as concentration of other reactants and temperature constant) n= log R1C1/R2C2 n= log R1 - log R2/log C1 -logC2 n=logC1-logC2/LogR1-LogR2 n=log C2-C1/R2-R1 19 / 30 The dyes which are produced on,the fibre in situ by reactions sell known Ingrain dyes Disperse dyes Mordant dyes Fast dyes 20 / 30 Spinning proton can take up how many orientations in an applied magnetic field 4 1 2 6 21 / 30 The terpenoid present in oil of lemon grass is alpha-terpineol Nerol Geranil Citral 22 / 30 which of the following statement is not correct with respect to applications of Hammett equations? This equation has mechanicstic implications it calssifies the substitute into two categories this equations does not help to calculate the rate of some equations This equation can be used to calculate the value of pKs It develops a quantitative relationship between structure and reactivity 23 / 30 In each period the element with least ionization enthalpy belongs to group 17 group 1 group18 group 2 24 / 30 A mixture of 0.1 mole of acetic anhydride and 0.1 mol of phenylamine was warmed gently untill no further reaction occurred and then shaken for some time with water.The volume of 1.0 M NaOH solution required to neutralize the aqueous product was 0 cm3 25 cm3 50 cm3 100 cm3 25 / 30 The Langmuir adsorption isotherm shows that the amount of adsorbed gas per gram of the solid is equal to 1+ap/1-bp ap+1/1-bp a(1+bp) ap/1+bp 26 / 30 Which of the spectrum arises when an electron jumps from one energy level to another? Rotational Nuclear Electronics Vibrational 27 / 30 Law of octaves was proposed by Lathor Meyer JAR. Newlands J.W. Dobereiner D.I. Mendeleev 28 / 30 In which pairs of reagents will each member of the pair react separetely with ethanoic acid? (1)H2SO4:NaOH (2)NH3:PCl3 (3)H2SO4:PCl3 (4)NH3:Cl2 1,2,3only 1,3 only 4 only 2,4 only 29 / 30 The reagent which can be react with 1- chlorobutane to give subsitution products is AlCl3 NaCN KOH-CH3OH Mg/ether 30 / 30 Foes compound to act as a dye it must have Both (A) and (B) suitable colour none of these Ability to fix to fibre 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