1. Water has the maximum density at   4oC   40oC   -4oC   0oC   Hint Half-n-half Clue   2. A metal body of mass 97.0 g occupies a volume of 5 cm3. Identify the metal.   Tungsten with density = 19.4 g/cm3   Lead with density = 11.4 g/cm3   Iron with density = 7.9 g/cm3   Aluminum with density = 2.7 g/cm3   Half-n-half Clue   3. The density of carbon dioxide is 1.8 kg/m3. So, the volume occupied by 9.0 kg of carbon dioxide is   5 m3   16.2 m3   0.2 m3   None of these   Half-n-half Clue   4. The density of air is about 1 g/cm3 at room temperature and atmospheric pressure.   True   False   5. 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 mass is doubled.   The mass is halved.   The density is doubled.   Half-n-half Clue   6. Which of these has the highest density?   Tungsten   Water   Mercury   Lead   Half-n-half Clue   7. The fraction of an iceberg submerged below the water surface is   4 / 5   9 / 10   1 / 5   1 / 10   Half-n-half Clue