Multiple choice

If the density of water at O'C, 4'C and 100'C are denoted by X, Y and Z, then the correct sequence of their decreasing order is

  1. X,Y, Z

  2. Y, Z, X

  3. Y, X, Z

  4. Z, Y, X

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Water has its maximum density at 4 degrees Celsius (Y). Density decreases as water cools toward 0 degrees Celsius (X) and as it heats toward 100 degrees Celsius (Z). Thus, the order of density is Y > X > Z.