1. Which of these has the highest density?   Water   Lead   Tungsten   Mercury   Hint Half-n-half Clue   2. The SI unit of density is   g/cm3   m3/kg   kg/m3   cm3/g   Half-n-half Clue   3. Which of the following statements is true?   Oil floats on water because oil is less dense than water.   Water floats on oil because water is more dense than oil.   Water floats on oil because water is less dense than oil.   Oil floats on water because oil is more dense than water.   Half-n-half Clue   4. A metal body of mass 216 g occupies a volume of 80 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 density of oxygen at room temperature is about 1.3 kg/m3. Therefore, its density in g/cm3 is   1300   130   0.0013   0.013   Half-n-half Clue   6. The fraction of an iceberg submerged below the water surface is   1 / 10   4 / 5   1 / 5   9 / 10   Half-n-half Clue   7. The density of carbon dioxide is 1.8 kg/m3. So, the volume occupied by 7.2 kg of carbon dioxide is   4 m3   0.2 m3   None of these   13.0 m3   Half-n-half Clue