1. The density of carbon dioxide is 1.8 kg/m3. So, the volume occupied by 5.4 kg of carbon dioxide is   0.3 m3   None of these   9.7 m3   3 m3   Hint Half-n-half Clue   2. Density is defined as   mass / volume   mass × acceleration   mass × volume   volume / mass   Half-n-half Clue   3. Which of the following statements is true?   Sea water has the same density as fresh water.   Sea water may be more dense or less dense than fresh water.   Sea water is more dense than fresh water.   Sea water is less dense than fresh water.   Half-n-half Clue   4. The fraction of an iceberg submerged below the water surface is   1 / 5   4 / 5   1 / 10   9 / 10   Half-n-half Clue   5. The density of mercury is 13.6 g/cm3. So, the mass of 5 cm3 of mercury is   68000 g   2 g   68.0 g   None of these   Half-n-half Clue   6. The density of water is about 100 kg/m3 at room temperature.   True   False   7. The SI unit of density is   m3/kg   kg/m3   cm3/g   g/cm3   Half-n-half Clue