1. A metal body of mass 162 g occupies a volume of 60 cm3. Identify the metal.   Iron with density = 7.9 g/cm3   Lead with density = 11.4 g/cm3   Aluminum with density = 2.7 g/cm3   Tungsten with density = 19.4 g/cm3   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?   Liquids L1 and L2 have the same density.   No definite conclusion can be made about the liquid densities.   Liquid L1 has a higher density than liquid L2.   Liquid L1 has a lower density than liquid L2.   Half-n-half Clue   3. A metal body of mass 58.2 g occupies a volume of 3 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   4. The density of mercury is 13.6 g/cm3. So, the mass of 10 cm3 of mercury is   1 g   136.0 g   136000 g   None of these   Half-n-half Clue   5. The density of carbon dioxide is 1.8 kg/m3. So, the volume occupied by 7.2 kg of carbon dioxide is   0.2 m3   4 m3   13.0 m3   None of these   Half-n-half Clue   6. Density is defined as   mass × acceleration   mass × volume   volume / mass   mass / volume   Half-n-half Clue   7. One kg of air is compressed from 1 m3 to 0.5 m3. Which of the following statements is true?   The density is halved.   The density is doubled.   The mass is doubled.   The mass is halved.   Half-n-half Clue