2nd PUC Chemistry Series 8 wefruPUC Science 2nd Year Chemistry Series-8 quiz 1 Created on December 02, 2020 By wefru2nd PUC Chemistry Series 8TEST YOUR KNOWLEDGE OF SCIENCE 1 / 1071. EDTA is used for the estimation of Na+ and K+ ions Cl– and Br– ions Cu2+ and Cs+ ions Ca2+ and Mg2+ ions 2 / 1072. The solution of the complex [Cu(NH3)4] SO4 in water will give the tests of Cu2+ ion give the tests of NH3 give the tests of SO42- ions not give the tests of any of the above 3 / 1073. SN1 reaction of alkyl halides lead to Retention of configuration Racemisation Inversion of configuration None of these 4 / 1074. p-djchlorobenzene has higher melting point than its o- and m- isomers because p-dichlorobenzene is more polar than o- and m- isomer. p-isomer has a symmetrical crystalline structure. boiling point of p-isomer is more than o- and m-isomer. All of these are correct reasons. 5 / 1075. Chloropicrin is formed by the reaction of steam on carbon tetrachloride. nitric acid on chlorobenzene. chlorine on picric acid nitric acid on chloroform 6 / 1076. Fitting reaction can be used to prepare Toluene Acetophenon Diphenyl Chlorobenzene 7 / 1077. The correct order of boiling point of primary (1°), secondary (2°) and tertiary (3°) alcohols is 1° > 2° > 3° 1° 2° > 3° 3° 8 / 1078. Which compound is predominantly formed when phenol is allowed to react with bromine in aqueous medium? Picric acid O-Bromophenol 2, 4, 6-Tribromophenol p-Bromophenol 9 / 1079. Phenols are more acidic than alcohols because Phenoxide ion is stablised by resonance Phenols are more soluble in polar solvents Phenoxide ion does not exhibit resonance Alcohols do not lose H atoms at all 10 / 1080. Which of the following reagents cannot be used to distinguish between phenol and benzyl alcohol? FeCl3 Litmus soln Br2/CCl4 All of these Your score isThe average score is 50% LinkedIn Facebook Twitter VKontakte 0% Restart quiz
