1st PUC Chemistry Series 1 December 3, 2020wefru 0 Created on December 02, 2020 By wefru1st PUC Chemistry Series 1TEST YOUR KNOWLEDGE OF SCIENCE 1 / 10Q.1 Elements X and Y combine to form two compounds XY and X2Y. Find the atomic weight of X and Y, if the weight of 0.1 moles of XY is 10g and 0.05 moles of X2Y is 9g 80, 20 80, 90 80, 89 80, 76 2 / 10Q.2 Which one will have maximum numbers of water molecules? 18 molecules of water 1.8 grams of water 18 grams of water 18 moles of water 3 / 10Q.3 The number of atoms present in 0.1 moles of a triatomic gas is 1.806 × 1023 8.806 × 1023 9.806 × 1023 3.806 × 1023 4 / 10Q.4 Find the volume of O2 required to burn 1 L of propane completely, measured at 0℃ temperature and 1 atm pressure 5 L 7 L 6 L 9 L 5 / 10Q.5 A gas X has Cp and Cv ratio as 1.4, at NTP 11.2 L of gas X will contain_______ number of atoms 6.02 × 1023 8.02 × 1023 9.02 × 1023 10 × 1023 6 / 10Q.6 Which of the species is not paramagnetic? As+ Cl Ne2+ +Be 7 / 10Q.7 Pressure has the same dimension as ____________ energy per unit volume energy force per unit volume force 8 / 10Q.8 A container has an equal mass of H2, O2 and CH4 at 27℃, the ratio of their volume is 16:8:1 8:1:2 16:1:2 8:16:1 9 / 10Q.9 There are two chlorides of sulphur S2Cl2 and SCl2. What is the equivalent mass of S in SCl2 64.8 g/mole 32 g/mole 16 g/mole 8 g/mole 10 / 10Q.10 Boron exists as two stable isotopes; 10B(19%) and 11B(81%). Find out the average atomic weight of boron in the periodic table 10.8 1 2 44 Your score isThe average score is 0% LinkedIn Facebook Twitter VKontakte 0% Restart quiz
