Correct option is D
Based on the given information about the densities of liquids A, B, C, and D:
Liquid A has a density of 785 kg/m3
Liquid B has a density of 820 kg/m3
Liquid C has a density of 924 kg/m3
Liquid D has a density of 1020 kg/m3
(a) An object that floats in liquid C may or may not float in liquid A.
This statement is correct. Whether an object floats in liquid A or not depends on its density compared to liquid A, and the density of liquid C doesn’t provide enough information to make a definite conclusion about its floatation in liquid A.
(b) An object that floats in liquid A may not float in liquid B.
This statement is correct. Whether an object floats in liquid B or not depends on its density compared to liquid B, and the density of liquid A doesn’t provide enough information to make a definite conclusion about its floatation in liquid B.
(c) An object that floats in liquid B surely floats in liquid A
This statement is incorrect. Liquid A has a lower density (785 Kg/m3) than liquid B (820 kg/m3), so an object that floats in liquid B does not necessarily float in liquid A. It may sink in liquid A.
(d) An object that floats in liquid C surely floats in liquid B.
This statement is incorrect. Liquid B has a higher density (820 kg/m3) than liquid C (924 kg/m3), so an object that floats in liquid C does not necessarily float in liquid B. It may sink in liquid B.