1. Water has the maximum density at   -4oC   4oC   0oC   40oC   Hint Half-n-half Clue   2. The density of air is about 1 g/cm3 at room temperature and atmospheric pressure.   True   False   3. The fraction of an iceberg submerged below the water surface is   4 / 5   1 / 10   9 / 10   1 / 5   Half-n-half Clue   4. The density of mercury is 13.6 g/cm3. So, the mass of 6 cm3 of mercury is   2 g   None of these   81.6 g   81600 g   Half-n-half Clue   5. Which of these has the lowest density?   Aluminum   Water   Cork   Glass   Half-n-half Clue   6. An object floats in liquid L1, but it sinks to the bottom in liquid L2. Which statement of the following is true?   No definite conclusion can be made about the liquid densities.   Liquid L1 has a lower density than liquid L2.   Liquid L1 has a higher density than liquid L2.   Liquids L1 and L2 have the same density.   Half-n-half Clue   7. The SI unit of density is   cm3/g   kg/m3   g/cm3   m3/kg   Half-n-half Clue