1. The density of mercury is 13.6 g/cm3. So, the mass of 7 cm3 of mercury is   1 g   95.2 g   95200 g   None of these   Hint Half-n-half Clue   2. The density of carbon dioxide is 1.8 kg/m3. So, the volume occupied by 5.4 kg of carbon dioxide is   9.7 m3   None of these   0.3 m3   3 m3   Half-n-half Clue   3. Which of these has the highest density?   Tungsten   Water   Lead   Mercury   Half-n-half Clue   4. The density of air is about 1 g/cm3 at room temperature and atmospheric pressure.   True   False   5. Which of these has the lowest density?   Aluminum   Water   Glass   Cork   Half-n-half Clue   6. The fraction of an iceberg submerged below the water surface is   1 / 10   4 / 5   9 / 10   1 / 5   Half-n-half Clue   7. Hot air is less dense than cold air.   True   False