0% Report a question What's wrong with this question? You cannot submit an empty report. Please add some details. 12345678910 Chemistry Class 12 This Quiz Contains a Set of 10 Questions. Passing cut-off is 60%. To Start the Quiz... Click on the Start Button. All the Best. 1 / 10 Which of the following statement is correct: The rate of a reaction decreases with passage of time as the concentration of reactants decreases The rate of reaction is same at any time during the reaction The rate of reaction is independent of temperature change The rate of reaction decreases with increase in concentration of reactant(s) 2 / 10 What is the molar conductance at infinite dilution for sodium chloride if the molar conductance at infinite dilution of Na+ and Cl- ions are 51.12 × 10-4 Scm2/mol and 73.54 × 10-4 Scm2/mol respectively? 124.66 Scm2/mol 22.42 Scm2/mol 198.20 Scm2/mol 175.78 Scm2/mol 3 / 10 Which of the following is a correct statement for C2H5Br? It reacts with metallic Na to give ethane. It gives nitroethane on heating with aqueous solution of AgNO2 It gives C2H5OH on boiling with alcoholic potash. It forms diethylthioether on heating with alcoholic KSH. 4 / 10 Pink colour of LiCl crystals is due to: Schottky defect Frenkel defect Metal excess defect Metal deficiency defect 5 / 10 Amorphous solids are: isotropic anisotropic isotopic isomeric 6 / 10 Lower molecular mass alcohols are: miscible in limited amount of water miscible in excess of water miscible in water in all proportions immiscible in water 7 / 10 Which one of the following compounds is more reactive towards SN1 reaction? CH2=CHCH2Br C6H5CH2Br C6H5CH(C6H5)Br C6H5CH(CH3)Br 8 / 10 Which of the following isomer has the highest melting point: 1,2-dicholorbenzene 1,3 -dichlorobenzene 1,4-dicholorbenzene all isomers have same melting points 9 / 10 Assertion (A): Alcohols react both as nucleophiles and electrophiles. Reason (R): The bond between C–O is broken when alcohols react as nucleophiles. Both A and R are true and R is the correct explanation of A Both A and R are true but R is not the correct explanation of A. A is true but R is false. A is false but R is true. 10 / 10 A first-order reaction is found to have a rate constant, k = 5.5 × 10-14 s-1. The time taken for completion of the reaction is: 1.26 x 1013 s 2.52 x 1013 s 0.63 x 1013 s It never goes to completion Your score is 0% Restart quiz
