Exam PlatformWelcomeSHIIBANGI KHAN(XI-Sc-A)StudentDashboardLive ClassLogout 23-07-2020 - CHEM - XI-SC QuestionsKalyani Central Model SchoolCHEMClass: XI-SCTotal Marks: 50Duration: 1 hour 30 minutesTime Left ::  : QuestionsQ.No.:1 If 500ml of a 5M solution is diluted to 1500mL, What will be the molarity of the solution obtained?  (a)  1.5 M  (b) 1.66 M  (c) 0.017 M  (d) 1.59 MMarks: 1Q.No.:2 If the cocentration of glucose(C6H12O6) in blood is 0.9g L-1, what will be the molarity of glucose in blood?  (a) 5M  (b) 50M  (c)  0.005M  (d) 0.5 MMarks: 1Q.No.:3 What will be the molality of the solution containing 18.25g of HCL gas in 500g of water?  (a) 0.1m  (b) 1M  (c) 0.5m  (d) 1mMarks: 1Q.No.:4 What is the mass percent of carbon in carbon dioxide?  (a) 0.034%  (b) 27.27%  (c) 3.4%  (d) 28.7%Marks: 1Q.No.:5 The emperical formula and molecular mass of a compound are CH2O and 180g repectively.What is the molecular formula of the compound?  (a) C9H18O9  (b) CH2O  (c) C6H12O6  (d) C2H4O2Marks: 1Q.No.:6 Which of the following statements about a compound is incorrect?  (a) A molecule of a compound may have atoms of different elements.  (b) A compound can not be seperated into its constituent elements by physical      method of seperation.  (c) A compound retains the physical properties of its contituent elements.  (d) The ratio of atoms of different elements in a compound is fixed.​