1. The density of carbon dioxide is 1.8 kg/m3. So, the volume occupied by 9.0 kg of carbon dioxide is   5 m3   0.2 m3   16.2 m3   None of these   Hint Half-n-half Clue   2. An object floats in liquid L1, but it sinks to the bottom in liquid L2. Which statement of the following is true?   Liquid L1 has a higher density than liquid L2.   Liquids L1 and L2 have the same density.   No definite conclusion can be made about the liquid densities.   Liquid L1 has a lower density than liquid L2.   Half-n-half Clue   3. Density is defined as   mass × acceleration   mass × volume   volume / mass   mass / volume   Half-n-half Clue   4. A metal body of mass 54 g occupies a volume of 20 cm3. Identify the metal.   Lead with density = 11.4 g/cm3   Iron with density = 7.9 g/cm3   Tungsten with density = 19.4 g/cm3   Aluminum with density = 2.7 g/cm3   Half-n-half Clue   5. The SI unit of density is   g/cm3   kg/m3   cm3/g   m3/kg   Half-n-half Clue   6. A metal body of mass 38.8 g occupies a volume of 2 cm3. Identify the metal.   Iron with density = 7.9 g/cm3   Aluminum with density = 2.7 g/cm3   Lead with density = 11.4 g/cm3   Tungsten with density = 19.4 g/cm3   Half-n-half Clue   7. Which of these has the highest density?   Lead   Tungsten   Water   Mercury   Half-n-half Clue