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 Assertion (A): During electrolysis of aqueous copper sulphate solution using copper electrodes hydrogen gas is released at the cathode. Reason (R): The electrode potential of Cu2+/Cu is greater than that of H+/H2. 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. 2 / 10 Which one of the following compounds is more reactive towards SN1 reaction? CH2=CHCH2Br C6H5CH2Br C6H5CH(C6H5)Br C6H5CH(CH3)Br 3 / 10 A unit cell of NaCl has 4 formula units. Its edge length is 0.50 nm. Calculate the density if molar mass of NaCl = 58.5 g/mol. 1 g/cm3 2 g/cm3 3 g/cm3 4 g/cm3 4 / 10 In which of the following solvents, the C4H8NH3+.X– is soluble; ether acetone water bromine water 5 / 10 All elements of Group 15 show allotropy except: Nitrogen Arsenic Antimony Bismuth 6 / 10 Assertion(A): SO2 is reducing while TeO2 is an oxidising agent. Reason(R): Reducing property of dioxide decreases from SO2 to TeO2. 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. 7 / 10 The initial concentration of R in the reaction R-->P is 4.62 x 10-2 mol/L. What is the half life for the reaction if k = 2.31 x 10-2 molL-1s-1 30 s 3 s 1 s 10 s 8 / 10 Which of the following statement is true? molecularity of reaction can be zero or a fraction. molecularity has no meaning for complex reactions. molecularity of a reaction is an experimental quantity reactions with the molecularity three are very rare but are fast. 9 / 10 Which one of the following statements is correct about sucrose: It can reduce tollen’s reagent however cannot reduce fehling’s reagent It undergoes mutarotation like glucose and fructose It undergoes inversion in the configuration on hydrolysis It is laevorotatory in nature. 10 / 10 Assertion (A): An ether is more volatile than an alcohol of comparable molecular mass. Reason (R): Ethers are polar in nature. 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. Your score is 0% Restart quiz
