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Question

Various material and their density are given in column A and B. Predict which of the substance will float on water. Density of water is 1 g/cm3.
Material Density (g/cm3)Ice 0.98Sulphuric acid 1.84Kerosene 0.80Plastic1.05
  1. Kerosene
  2. Ice
  3. Plastic
  4. Sulphuric acid


Solution

The correct options are
A Kerosene
B Ice
Density is defined as mass per unit volume of a substance.
The substances which are lighter than water floats on its surface.
The substances which are heavier than water sinks down in it.
 From the given data it is clear that the density of ice and kerosene are less than water. Thus, these two are lighter than water, and hence they will float.

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